[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fxLN3MUwXCdr5RPjwZYIDpOj8CHyjOmngWTgoKXPtZbg":3,"$fP4pOQ5In2UadruUEk1F7P8wRIOuQA7LosenneBIdesc":36,"$f3Ft0rKFJHppdzE-vuveecxx1BUcg9iOlMLtyzf_MJDg":118,"$fucxFBm2ZjZfGSdmdRaSNGBI_F0jJme4f0GTvzUhQfL8":182},[4,8,12,16,20,24,28,32],{"title":5,"slug":6,"path":7},"About Microbeonline.com","about-microbeonline-com","\u002Fabout-microbeonline-com\u002F",{"title":9,"slug":10,"path":11},"About Me","about-me","\u002Fabout-microbeonline-com\u002Fabout-me\u002F",{"title":13,"slug":14,"path":15},"Advertise with Us","advertise-us","\u002Fadvertise-us\u002F",{"title":17,"slug":18,"path":19},"Privacy Policy","privacy-policy","\u002Fprivacy-policy\u002F",{"title":21,"slug":22,"path":23},"Abbreviations","abbreviations","\u002Fabbreviations\u002F",{"title":25,"slug":26,"path":27},"Microbes","microbes","\u002Fmicrobes\u002F",{"title":29,"slug":30,"path":31},"Books","recommended-books","\u002Frecommended-books\u002F",{"title":33,"slug":34,"path":35},"Utilization Tests for Bacterial Identification","utilization-tests","\u002Futilization-tests\u002F",{"type":37,"data":38},"blog",{"slug":39,"title":40,"description":41,"seoTitle":42,"seoDescription":42,"author":43,"createdDate":44,"lastUpdatedDate":45,"draft":46,"category":47,"image":42,"body":48,"faq":49,"commentsClosed":46,"tags":80,"related":82,"comments":114},"loop-mediated-isothermal-amplification-lamp","Loop-Mediated Isothermal Amplification (LAMP): Principle, Mechanism, and Applications","\u003Cp>LAMP amplifies DNA at one constant temperature using six primers and Bst polymerase, with no thermocycler. Learn the principle, the step-by-step mechanism, detection methods, and how LAMP compares with PCR.\u003C\u002Fp>",null,"Srijana Khanal","2022-06-04","2026-08-16",false,"molecular-biology","Loop-mediated isothermal amplification (LAMP) is one of the advanced molecular biology techniques that offers accurate, rapid, and cost-effective diagnosis of infectious diseases. Primarily, this technique is conducted where the [PCR facilities](\u002Fpolymerase-chain-reaction-pcr-steps-types-applications\u002F) and infrastructures are unavailable. The amplification of nucleic acid in the LAMP technique is based on strand displacement reaction and a stem-loop structure formation under isothermal conditions.\n\nThis makes LAMP well suited to testing at the point of care, in clinics and field settings that have no thermocycler and little laboratory infrastructure. During the COVID-19 pandemic, for example, RT-LAMP assays were used to detect SARS-CoV-2 directly from saliva or swab samples with a simple heat source and a visible color change.\n\n## Background\n\nLarge varieties of diagnostic methods have been developed and implemented since the discovery of diseases. However, many pathogens still survive in the world without being eliminated. Diagnosis, therefore, plays a critical role in the effective treatment and control of infectious diseases, and the diagnostic methods vary with time, from traditional to advanced ones. The conventional ways of diagnosis include culture method, microscopy, and biochemical tests. The culture method is still a core technology in the clinical laboratory. It gives information about the viability of the pathogens and further tests, like antibiotic sensitivity tests and biochemical tests, which are done on their basis. But, while culturing pathogens, the slow multiplication of microbes causes a delay in diagnosis, and difficulty in selective cultivation may create problems in diagnosis.\n\nOn the other hand, direct microscopy is frequent, rapid, and simple, but the poor sensitivity of smear tests may result in false negativity. Furthermore, mixed Infections with two or more species are usually not recognized in such methods. The newer and advanced technologies, like serology and antigen capture tests, are rapid but may lack sensitivity and specificity.\n\nDelay in diagnosis delays the therapy, exacerbating the severity of diseases. Similarly, a wrong diagnosis may lead to inappropriate medicine prescription, affecting treatment and creating resistant microorganisms.\n\nIn traditional methods, confusion is often caused by variations in chemical composition and morphology. The advanced technologies based on the DNA of pathogenic cells are highly effective in overcoming these challenges. DNA is more informative than the chemical composition of pathogens and can be extracted. PCR is a molecular technique that requires expensive equipment and is more time-consuming.\n\nAlthough PCR was a revolution in diagnosis, it is costly and time-consuming. So, an alternative isothermal amplification (LAMP) was introduced. Compared with PCR, LAMP requires less time and is less expensive. Hence LAMP has excellent potential in diagnosis.\n\nLAMP technology was first reported in 2000 by Notomi et al. of Japan. As the name suggests, LAMP amplifies a target DNA segment under isothermal conditions, and loop structures are formed when the LAMP primers amplify their target DNA sequence. The highly efficient polymerase enzyme used amplifies the target DNA sequence in a minimal amount of sample, producing millions of copies of the target sequence.\n\n## Principle of LAMP\n\nLAMP answers one practical question: how do you copy a specific piece of DNA millions of times without a machine that heats and cools the sample over and over?\n\nOrdinary PCR needs a thermocycler because it separates the two DNA strands by heating to about 95 °C, then cools to let primers bind, then warms again to extend them, repeating the cycle 30 or more times. The heating step is what pulls the double helix apart.\n\n**LAMP removes the need for that heating in two ways.**\n\n1. First, it uses a different enzyme. The polymerase in LAMP is *Bst* DNA polymerase, from *Bacillus stearothermophilus*. Its special property is strong strand displacement: as it synthesizes a new strand, it pushes the old complementary strand out of the way. Because the enzyme itself separates the strands as it goes, the reaction never needs a high-temperature denaturation step. Everything happens at one constant temperature, about 60 to 65 °C.\n2. Second, it uses a clever primer design that makes the DNA fold back on itself into loops. This is the part worth understanding, because it is the whole idea behind the name.\n\nLAMP uses four core primers that recognize six separate regions of the target. Two of them, the inner primers FIP and BIP, are unusual: each one is really two sequences joined together. FIP carries an F2 segment at its 3′ end and an F1c segment at its 5′ end. When FIP primes synthesis, the new strand it makes ends up carrying both an F1 region and, further along, a sequence complementary to it (F1c). Because those two regions are complementary and sit on the same strand, that strand folds back and pairs with itself, forming a loop. The same thing happens at the other end with BIP.\n\nThe result is a DNA molecule with a loop at each end, shaped like a dumbbell. That dumbbell is the key intermediate. Its loops give the primers ready-made single-stranded landing sites, so new rounds of synthesis can start again and again without any heating to reopen the DNA. The reaction becomes self-sustaining, and copies pile up extremely fast, up to a billion in under an hour.\n\n**So the principle in one line:** a strand-displacing enzyme removes the need to heat, and a self-looping primer design keeps the reaction cycling on its own at one temperature.\n\n## Mechanism of LAMP\n\nTarget DNA from pathogen cells is amplified by employing Bst DNA polymerase (isolated from *Bacillus* *stearothermophilus*). A set of 4-6 specially designed primers hybridize into six or eight different parts of the target DNA sequence. The DNA polymerase undergoes strand displacement activity along with two inner primers and two outer primers in both the forward and backward direction of the target DNA, thereby initiating the synthesis. Two additional primers, which are specially designed to anneal at the loop structure, can facilitate subsequent rounds of amplification and enhance the sensitivity of the LAMP reaction.\n\nThe types of primers required are; forward inner primer (FIP), forward outer primer (FOP or F3), backward inner primer (BIP), and backward outer primer (BOP or B3), forward loop primer (LF), and backward loop primer (LB).\n\n![ - Loop-mediated isothermal amplification (Source: Trends in Parasitology)](\u002Fblogs\u002FLoop-mediated-isothermal-amplification-LAMP.png)Figure: Loop-mediated isothermal amplification (Source: Trends in Parasitology)\n\nDNA amplification in LAMP can be divided into three steps illustrated in the figure. The three steps are:\n\n### Starting structure producing phase\n\n- Firstly, the DNA sequence of interest is identified with three forward target regions and three backward target regions; primers are designed according to the target sequence based on the conserved region.\n- Then, based on each sequence of six target regions, LAMP primers are designed.\n- Now, denaturation of the DNA containing the target is done to separate two complementary strands.\n- After that, FIP (forward inner primer) binds to the F2c region through its F2 segment and primes synthesis, and the polymerase extends the new strand in the 5′ to 3′ direction.\n- Similarly, the forward outer primer, F3, now binds to a region upstream from the FIP binding site.\n- Thus the newly formed strand, created by the action in FIP, is now unzipped by the F3 primer as it synthesizes complementary DNA.\n- Similarly, the backward inner primer (BIP) binds the newly made strand at the B2c region, and synthesis again proceeds in the 5′ to 3′ direction.\n- Now, the backward outer primer, B3, binds upstream from the binding site of BIP.\n- B3 primer now unzips the new strand, which was formed by the action of BIP as it synthesizes complementary DNA.\n- Finally, the newly synthesized strand carries two pairs of complementary regions on the same strand, F1 with F1c and B1 with B1c. Because these regions are complementary and lie on one strand, the strand folds back and pairs with itself at each end, forming a dumbbell-shaped structure with a loop at each end.\n\n### Cycling amplification step\n\n- Here, the looped structure forms the basis for the LAMP auto cycling process.\n- Then FIP and BIP bind at F2c and B2c respectively, self-priming through the F1-F1c and B1-B1c complementary regions occurs, and the reaction continues cycling through further rounds of synthesis.\n- In addition, forward and backward loop primers (LF and LB) provide other priming sites and increase the amplification rate.\n- The binding site for LF is a sequence between F1 and F2 regions of the target, whereas that for LB is a sequence between B1 and B2 target regions.\n\n### Elongation step\n\n- All six primers’ activity produces much different-sized DNA with multiple repeats of the initial target sequence.\n- Long DNA products, more than 20 kbp, are formed from numerous repeats of the short (80-250 bps) target sequence. These are connected with single-stranded loop regions in long concatemers.\n- The addition of reverse transcriptase amplifies DNA from RNA sequences (RT-LAMP), making diagnosis possible from RNA samples.\n- Although the downstream manipulation is not suitable, the target amplification is extensive enough to perform numerous modes of detection.\n\n> Concatemers: One of two or more DNA or RNA molecules that are covalently joined (end to end) in the same orientation.\n\n## LAMP versus PCR\n\nLAMP and [PCR](https:\u002F\u002Fmicrobeonline.com\u002Fpolymerase-chain-reaction-pcr-steps-types-applications\u002F) both copy a target DNA sequence millions of times, but they work differently and suit different settings. The table below sets out the main differences.\n\n| Feature | PCR | LAMP |\n| --- | --- | --- |\n| Temperature | Cycles between about 95 °C, 55 °C, and 72 °C | One constant temperature, about 60 to 65 °C |\n| Equipment | Needs a thermocycler | Needs only a simple heat source (water bath, heat block) |\n| Enzyme | *Taq* polymerase (no strand displacement) | *Bst* polymerase (strong strand displacement) |\n| Primers | 2 primers, 2 regions | 4 to 6 primers, 6 to 8 regions |\n| Specificity | High | Very high, because more regions must all match |\n| Time | 1 to 3 hours plus detection | 15 to 60 minutes, detection often built in |\n| Typical yield | About 10 to the power of 6 copies | About 10 to the power of 9 copies |\n| Sample tolerance | Sensitive to inhibitors, needs clean DNA | More tolerant of inhibitors, minimal sample prep |\n| Readout | Usually gel or real-time fluorescence | Often naked-eye color or turbidity change |\n| Quantification | Straightforward with real-time PCR | Harder to quantify |\n| Multiplexing | Well established | Difficult |\n\nThe practical takeaway: PCR remains the reference method in a well-equipped laboratory, especially where accurate quantification or multiplexing is needed. LAMP wins where speed, simplicity, and no thermocycler matter most, which is why it has become a leading choice for point-of-care and field diagnosis. The higher primer count is the reason for LAMP's very high specificity: amplification only proceeds when all six regions of the target are correctly recognized, so a chance match at one or two sites is not enough to give a signal.\n\n### Methods for Detection\n\nThe amplification and detection of DNA can be accomplished in a single step. The procedure of LAMP technology can be completed by incubating the mixture of sample primers, DNA polymerase having strand displacement activity, and substrate at a constant temperature of 60- 65°C. Samples are loaded into instruments and run all at the same time for real-time results. DNA will be highly amplified within 15 to 60 minutes.\n\nFor real-time detection, turbidity can be measured by a photometer with an incubation function, without any added detection reagent, because amplification produces insoluble magnesium pyrophosphate that makes the solution cloudy. Color-based detection uses a pH indicator such as phenol red. Amplification releases hydrogen ions and lowers the pH, so a positive reaction turns from pink to yellow, while a negative reaction stays pink. This visible change can be read by eye without any instrument.\n\nOther than visual detection by colorimeter, the amplified products are detected by various methods. Such methods are lateral flow, agarose gel detection, and Real-time fluorescence detection using intercalators or probes.\n\n## Benefits of LAMP\n\nLAMP is preferable to PCR and other diagnostic methods because of the following reasons:\n\n- LAMP-based assays have been highly sensitive and specific with real-time detection.\n- The process is rapid, often completed within 60 minutes.\n- It uses a DNA polymerase with strong strand displacement activity, such as *Bst* polymerase, which is what allows the reaction to run at a single temperature.\n- The protocol is simple, without any complicated procedure and different preparatory steps as in many PCR systems; therefore, it requires low-cost equipment; and the entire process is run under constant temperature.\n- LAMP is less sensitive to inhibitory substances present in biological samples.\n- Different primers designed to hybridize six or eight parts of the target sequence of DNA make the process highly specific because amplification occurs only when the primers properly recognize all the regions within a target DNA. And thus, DNA produced is considerably higher.\n- LAMP can also be used for RNA templates by adding reverse transcriptase.\n\n## Applications of LAMP\n\nSince its development, Lamp has been used for detecting various pathogens, including viruses, bacteria, and protozoans. In many countries, LAMP is recommended for routine identification and surveillance of pathogens. LAMP is suitable for areas with no infrastructures and other facilities available, but the population is exposed to many dangerous infectious diseases. LAMP has been applied in different diagnoses, which are summarized in the following points:\n\n- Many food-borne diseases caused by *Salmonella*, *Legionella*, *Listeria*, VTEC, Norovirus, *Campylobacter*, etc., can be detected using the LAMP technique, which avoids lengthy culture methods.\n- Detection of food pathogens by using LAMP techniques ensures food safety and quality. Traditional plating of food samples to a series of selective or non-selective media fails sometimes.\n- The technique is also applicable for corona and influenza viruses. Rapid Colorimetric LAMP Assay Kit for colorimetric detection of SARS-CoV-2 can be used to analyze novel coronavirus causing COVID -19.\n- HIV, HPV, *Cryptosporidium* oocysts, *Vibrio* *cholerae*, and other pathogens are also detected using the LAMP method with high sensitivity.\n- LAMP has been applied to detect *Plasmodium* species in blood or fecal samples and their differentiation into species, such as *Plasmodium falciparum*, *P. ovale*, *P. vivax,* and *P. malariae.* Thick and thin smears used for parasites may give false-negative results, most commonly during low parasitemia.\n- A LAMP assay is available for *Mycobacterium tuberculosis*, *Mycobacterium avium*, and *Mycobacterium intracellulare*. It is sensitive enough to detect very low numbers of bacteria, including in sputum samples.\n- LAMP techniques are used to distinguish between organisms differing by only a single nucleotide polymorphism to identify closely sub-genotypes, hence identifying two easily confused species.\n- Animal species identification of meat samples can employ the LAMP technique to know the wrong labeling of meat products\n- Food contamination and plant pathology can be detected by using LAMP techniques.\n- LAMP can also be applied for GMO screening and detection applied in plants\n- LAMP techniques help screen toxic adulterants and admixtures in herbal products.\n\n## Limitations of LAMP\n\nAlthough the LAMP technique is reliable and rapid, it has certain limitations:\n\n- Difficulties in designing LAMP primers may occur, even though the software is available for designing LAMP primers.\n- The high sensitivity and specificity may sometimes result in false-positive amplification, which can occur due to cross-contamination, mainly caused by aerosols in the assay. Therefore, great attention is necessary while handling biological samples to avoid aerosols formation, and sterilization must be maintained. DNA extraction must be performed carefully and quickly under sterile conditions to prevent contamination and DNA degradation.\n- There may be difficulty in quantification.\n\n## Conclusion\n\nThere is the greatest need for simple and field-friendly diagnostic tools that can be readily adapted in poorly resourced laboratories to treat and control diseases effectively. At present, LAMP is a relevant alternative DNA-based amplification platform that is rapid, affordable, and accurate. Hence, it can be a better option for both developed and developing countries, where it can be routinely employed for sensitive and specific detection of pathogens.\n\n## How to Remember\n\n**Why it needs no thermocycler: the enzyme does the unzipping.** PCR heats the DNA to pull the strands apart. LAMP does not, because *Bst* polymerase shoves the old strand aside as it copies (strand displacement). No heating step means no cycling machine. One temperature, start to finish.\n\n**Why the loops form: the inner primers are two-in-one.** FIP and BIP each carry two joined sequences (an F2 and an F1c). That builds a strand with two complementary regions on it, so the strand folds back on itself into a loop. Loop at each end gives the dumbbell. The dumbbell is what lets the reaction self-cycle. The \"loop\" in the name is literally this.\n\n**Six primers, six regions: that is where the specificity comes from.** More regions that must all match means far less chance of a false signal. This is why LAMP is even more specific than PCR, which uses only two.\n\n**LAMP vs PCR in one line.** PCR for the equipped lab and for quantifying. LAMP for the field: faster, cheaper, no thermocycler, read by eye.\n\n## Key exam facts in one table\n\n| Point | Fact |\n| --- | --- |\n| Full form | Loop-Mediated Isothermal Amplification |\n| Invented by | Notomi et al., 2000 (Eiken Chemical, Japan) |\n| Enzyme | *Bst* DNA polymerase, from *Bacillus stearothermophilus* |\n| Key enzyme property | Strong strand displacement (removes the need for heat denaturation) |\n| Temperature | Constant 60 to 65 °C (isothermal) |\n| Core primers | 4 (2 outer: F3, B3; 2 inner: FIP, BIP) recognizing 6 regions |\n| Optional primers | 2 loop primers (LF, LB) that speed the reaction |\n| Why loops form | FIP and BIP each carry two joined segments, so the new strand folds back on itself |\n| Key intermediate | Dumbbell-shaped DNA with a loop at each end |\n| Synthesis direction | 5′ to 3′ (as for all DNA polymerases) |\n| Yield and time | Up to about 10 to the power of 9 copies in under an hour |\n| RNA version | RT-LAMP (add reverse transcriptase, or use Bst with RT activity) |\n| Readout | Turbidity, colorimetric (pH indicator), or fluorescence; often naked-eye |\n| Main strength | Fast, cheap, no thermocycler; ideal for point-of-care and field use |\n| Main limits | Hard primer design, false positives from contamination, hard to quantify or multiplex |\n\n## Where Students Get Confused\n\n**\"Why does LAMP not need a thermocycler when PCR does?\"** Because the two methods separate DNA strands differently. PCR uses heat (about 95 °C) to pull the strands apart, so it must cycle the temperature up and down. LAMP uses *Bst* polymerase, which displaces the old strand as it copies, so the strands are separated by the enzyme itself. No heating step is needed, and the whole reaction runs at one temperature.\n\n**\"Why does LAMP need so many primers?\"** The four to six primers recognize six to eight separate regions of the target. Two of the primers (FIP and BIP) are inner primers built from two joined segments each, and these are what make the DNA fold into loops. More recognition regions also make LAMP very specific: amplification only happens when all the regions match, so accidental matches do not give a false result.\n\n**\"What actually makes the loops?\"** The inner primers. Because FIP carries both an F2 and an F1c segment, the strand it helps build contains two complementary regions (F1 and F1c) on the same strand. Complementary regions on one strand pair with each other, so the strand folds back into a loop. The same happens at the other end with BIP, giving the dumbbell shape.\n\n**\"Is LAMP more or less specific than PCR?\"** More specific. PCR uses two primer sites; LAMP uses six or more. Because every region must be recognized for amplification to proceed, LAMP is less likely to give a false positive from a chance match. Its main downside is not specificity but the risk of contamination-driven false positives and the difficulty of quantifying the result.\n\n**\"What is RT-LAMP, and how is it different?\"** RT-LAMP is LAMP for RNA targets. A reverse transcriptase first copies the RNA into DNA, then the normal LAMP reaction proceeds. It is how LAMP detects RNA viruses such as SARS-CoV-2. Some *Bst* enzymes have reverse transcriptase activity built in, so a separate enzyme is not always needed.\n\n**References**\n\n1. Notomi T., Okayama H., Masubuchi H., Yonekawa T., Watanabe K., Amino N., Hase T. (2000). Loop-mediated isothermal amplification of DNA. *Nucleic Acids Research*, 28(12), e63. \u003Chttps:\u002F\u002Fdoi.org\u002F10.1093\u002Fnar\u002F28.12.e63>\n2. Mori Y., Notomi T. (2009). Loop-mediated isothermal amplification (LAMP): a rapid, accurate, and cost-effective diagnostic method for infectious diseases. *Journal of Infection and Chemotherapy*, 15(2), 62–69. \u003Chttps:\u002F\u002Fdoi.org\u002F10.1007\u002Fs10156-009-0669-9>\n3. Chen X., Zhang J., Pan M., Qin Y., Zhao H., Qin P., et al. (2021). Loop-mediated isothermal amplification (LAMP) assays targeting 18S ribosomal RNA genes for identifying *P. vivax* and *P. ovale*, and mitochondrial DNA for detecting the genus *Plasmodium*. *Parasites & Vectors*, 14(1), 278. \u003Chttps:\u002F\u002Fdoi.org\u002F10.1186\u002Fs13071-021-04764-9>\n4. Foo P.C., Nurul Najian A.B., Muhamad N.A., Ahamad M., Mohamed M., Yean Yean C., Lim B.H. (2020). Loop-mediated isothermal amplification (LAMP) reaction as viable PCR substitute for diagnostic applications: a comparative analysis of LAMP, conventional PCR, nested PCR, and real-time PCR based on *Entamoeba histolytica* DNA. *BMC Biotechnology*, 20(1), 34. \u003Chttps:\u002F\u002Fdoi.org\u002F10.1186\u002Fs12896-020-00629-8>\n5. Li J., Xiong C., Liu Y., Liang J., Zhou X. (2016). Loop-mediated isothermal amplification (LAMP): emergence as an alternative technology for herbal medicine identification. *Frontiers in Plant Science*, 7, 1956. \u003Chttps:\u002F\u002Fdoi.org\u002F10.3389\u002Ffpls.2016.01956>\n6. New England Biolabs. Loop-Mediated Isothermal Amplification (LAMP). \u003Chttps:\u002F\u002Fwww.neb.com\u002Fen-us\u002Fapplications\u002Fdna-amplification-pcr-and-qpcr\u002Fisothermal-amplification\u002Floop-mediated-isothermal-amplification-lamp>",[50,53,56,59,62,65,68,71,74,77],{"question":51,"answer":52},"\u003Cp>What is the full form of LAMP in microbiology?\u003C\u002Fp>","\u003Cp>LAMP stands for Loop-Mediated Isothermal Amplification. It is a method that copies a specific DNA sequence millions of times at a single constant temperature, without the repeated heating and cooling that PCR requires.\u003C\u002Fp>",{"question":54,"answer":55},"\u003Cp>What is the principle of LAMP?\u003C\u002Fp>","\u003Cp>LAMP relies on two things. First, it uses \u003Cem>Bst\u003C\u002Fem> DNA polymerase, an enzyme with strong strand displacement activity, so it can separate DNA strands as it copies them and never needs a high-temperature step. Second, it uses inner primers built from two joined segments, which make the newly made DNA fold back on itself into loops. These loops let the reaction restart on its own again and again at one temperature, so copies build up very quickly.\u003C\u002Fp>",{"question":57,"answer":58},"\u003Cp>What temperature does LAMP run at?\u003C\u002Fp>","\u003Cp>LAMP runs at a single constant temperature, usually 60 to 65 °C. This is why it is called isothermal and why it does not need a thermocycler. A simple water bath or heat block is enough.\u003C\u002Fp>",{"question":60,"answer":61},"\u003Cp>How is LAMP different from PCR?\u003C\u002Fp>","\u003Cp>PCR cycles between different temperatures to separate DNA strands by heat, so it needs a thermocycler and takes longer. LAMP works at one temperature because the enzyme itself displaces the strands, so it needs only a simple heat source and gives results in 15 to 60 minutes. LAMP also uses six or more primers against six to eight regions, compared with two primers in PCR, which makes it very specific. PCR is still preferred where accurate quantification or multiplexing is needed.\u003C\u002Fp>",{"question":63,"answer":64},"\u003Cp>Which enzyme is used in LAMP?\u003C\u002Fp>","\u003Cp>\u003Cem>Bst\u003C\u002Fem> DNA polymerase, originally from the bacterium \u003Cem>Bacillus stearothermophilus\u003C\u002Fem>. Its key feature is strong strand displacement activity, which lets it push aside the old DNA strand as it synthesizes a new one. This is what removes the need for a heat denaturation step and allows the whole reaction to run at one temperature.\u003C\u002Fp>",{"question":66,"answer":67},"\u003Cp>How many primers does LAMP use and why so many?\u003C\u002Fp>","\u003Cp>LAMP uses four core primers (two outer, F3 and B3, and two inner, FIP and BIP) that recognize six regions of the target. Two optional loop primers can be added to speed the reaction. The inner primers are special because each is made of two joined sequences, and this design is what makes the DNA fold into loops. Using so many regions also makes LAMP highly specific, because amplification only proceeds when all the regions are correctly matched.\u003C\u002Fp>",{"question":69,"answer":70},"\u003Cp>Why does LAMP form loop structures?\u003C\u002Fp>","\u003Cp>Because of the inner primers. FIP carries an F2 segment and an F1c segment joined together, so the strand it helps build contains two complementary regions (F1 and F1c) on the same strand. Complementary regions on one strand pair with each other, so the strand folds back into a loop. The same happens at the other end with BIP, producing a dumbbell-shaped molecule with a loop at each end. These loops are what allow the reaction to keep cycling on its own.\u003C\u002Fp>",{"question":72,"answer":73},"\u003Cp>What is RT-LAMP?\u003C\u002Fp>","\u003Cp>RT-LAMP is LAMP used to detect RNA rather than DNA. A reverse transcriptase enzyme first copies the RNA target into DNA, and then the normal LAMP reaction amplifies it. RT-LAMP was widely used to detect the RNA virus SARS-CoV-2 during the COVID-19 pandemic, often with a simple color change read by eye.\u003C\u002Fp>",{"question":75,"answer":76},"\u003Cp>How are LAMP results detected?\u003C\u002Fp>","\u003Cp>LAMP results can be read in several ways. Turbidity: amplification produces magnesium pyrophosphate, which makes the solution cloudy. Color: a pH indicator such as phenol red changes color as the reaction lowers the pH, turning a positive sample from pink to yellow. Fluorescence: dyes or probes give a signal that can be measured in real time. The color and turbidity readouts can often be seen with the naked eye, which is a major advantage in field settings.\u003C\u002Fp>",{"question":78,"answer":79},"\u003Cp>What are the limitations of LAMP?\u003C\u002Fp>","\u003Cp>Designing the primers is complex, because several primers must be optimized together. The high sensitivity means contamination can cause false positives, so careful handling is essential. LAMP is also harder to quantify than real-time PCR and is difficult to multiplex, meaning it is not easy to test for several targets in one reaction.\u003C\u002Fp>",[81],"molecular-technique",[83],{"slug":84,"title":85,"description":86,"seoTitle":87,"seoDescription":88,"author":89,"createdDate":90,"lastUpdatedDate":91,"draft":46,"category":92,"image":42,"faq":93,"tags":112},"polymerase-chain-reaction-pcr-steps-types-applications","Polymerase Chain Reaction (PCR): Steps, Types, and Applications","PCR amplifies DNA exponentially in three steps: denaturation, annealing, and extension. Learn the components, steps, types: nested, multiplex, real-time, RT-PCR and clinical applications in diagnostic microbiology.","PCR: Steps, Reagents, Result Interpretation, and Applications","Review PCR reagents and the denaturation, annealing, and extension cycle, then compare major PCR variants, controls, interpretation, and applications.","Acharya Tankeshwar","2016-07-07","2026-08-15","lab-equipment",[94,97,100,103,106,109],{"question":95,"answer":96},"What is polymerase chain reaction (PCR) and what does it do?","\u003Cp>Polymerase chain reaction (PCR) is an in vitro molecular technique that amplifies a specific DNA or RNA sequence exponentially, producing up to 10 million copies from a single starting template within a few hours. It works by repeatedly cycling through three temperature-controlled steps (denaturation, annealing, and extension), using a heat-stable DNA polymerase (Taq polymerase) and short synthetic primers that define the target sequence. In clinical microbiology, PCR directly detects a pathogen's nucleic acid in a patient specimen, regardless of whether the organism is alive, cultivable, or present in small quantities.\u003C\u002Fp>",{"question":98,"answer":99},"What are the three steps of PCR and what temperature is used for each?","\u003Cp>PCR has three steps that repeat in each cycle. Denaturation occurs at 94–96°C, heat breaks the hydrogen bonds between the two DNA strands, separating them into single-stranded templates. Annealing occurs at 45–65°C, the temperature is lowered so primers can bind to their complementary sequences on each strand. Extension occurs at 72°C, Taq polymerase synthesizes a new complementary DNA strand starting from each primer. After 30–40 cycles, the target sequence is amplified by a factor of approximately 10 million.\u003C\u002Fp>",{"question":101,"answer":102},"What is Taq polymerase and why is it used in PCR?","\u003Cp>Taq polymerase is a thermostable DNA polymerase originally isolated from Thermus aquaticus, a bacterium that lives in boiling hot springs. Its defining property is heat stability, it remains active at 72°C and survives the 94°C denaturation step without being destroyed. This allows automated PCR cycling without adding fresh enzyme after every cycle. Without a heat-stable polymerase, PCR as an automated process would not be possible.\u003C\u002Fp>",{"question":104,"answer":105},"What is the difference between RT-PCR and real-time PCR?","\u003Cp>These two terms describe different aspects of PCR and are frequently confused. RT-PCR (reverse transcriptase PCR) refers to the template type: it adds a reverse transcription step that converts RNA into complementary DNA before amplification, making it possible to detect RNA viruses such as HIV, hepatitis C, dengue, and SARS-CoV-2. Real-time PCR (quantitative PCR or qPCR) refers to the detection method: fluorescence is measured during each amplification cycle, allowing quantitation of the target. A test can be both simultaneously: the COVID-19 PCR test is technically RT-qPCR, using reverse transcriptase for the RNA template and real-time detection for quantitation.\u003C\u002Fp>",{"question":107,"answer":108},"When should nested PCR be used instead of standard PCR?","\u003Cp>Nested PCR should be used when the target organism is present in very low quantities, below the detection threshold of standard single-round PCR. It uses two successive PCR reactions with two primer sets: outer primers amplify a large fragment first, then inner (nested) primers amplify a smaller specific region within that product. The double amplification dramatically increases sensitivity. Clinical applications include detection of \u003Cem>Rickettsia\u003C\u002Fem> and \u003Cem>Bartonella\u003C\u002Fem> in blood, \u003Cem>M. tuberculosis\u003C\u002Fem> in paucibacillary samples, herpesviruses and enteroviruses in CSF, and \u003Cem>Leishmania\u003C\u002Fem> in tissue.\u003C\u002Fp>",{"question":110,"answer":111},"What are the advantages of PCR over culture in clinical microbiology?","\u003Cp>PCR offers four key advantages over culture. Speed: results in hours rather than days: TB culture takes 6–8 weeks; PCR confirms TB the same day. Sensitivity: detects as few as 1–10 DNA copies per reaction, far below the threshold for culture positivity. Specificity: primers target a defined sequence, identifying the exact organism or resistance gene rather than just confirming growth. Versatility: works on organisms that cannot be cultured (many viruses, some parasites), on degraded specimens (formalin-fixed tissue, dried blood), and on samples with mixed flora where culture is uninterpretable.\u003C\u002Fp>",[113],"pcr-techniques",{"enabled":115,"threads":116,"total":117},true,[],0,[119,125,132,139,145,150,156,161,166,169,176],{"slug":120,"name":89,"description":121,"image":122,"body":123,"postCount":124},"acharya-tankeshwar","Editor-in-chief","https:\u002F\u002Fassets.microbeonline.com\u002Fauthors\u002Ftankeshwar-acharya-author-microbeonline.jpg","***Tankeshwar Acharya, MSc (Medical Microbiology)***\n\n*Tankeshwar Acharya is an Assistant Professor in the Department of Microbiology at Patan Academy of Health Sciences (PAHS), Nepal, where he has been teaching and practicing clinical microbiology for over 14 years. He is the founder of Microbe Online, one of the leading free microbiology education resources on the web, covering bacteriology, mycology, parasitology, immunology, and clinical laboratory diagnostics written from direct experience in both the classroom and the diagnostic laboratory.*",468,{"slug":126,"name":127,"description":128,"image":129,"body":130,"postCount":131},"ashma-shrestha","Ashma Shrestha","SEO Copywriter and Science Communicator\nKathmandu, Nepal","https:\u002F\u002Fassets.microbeonline.com\u002Fauthors\u002Fashma-shrestha.png","Ashma Shrestha holds a Master of Science in Medical Microbiology from the Institute of Science and Technology (IOST), Tribhuvan University, Nepal, where she developed a strong foundation in virology, molecular biology, and diagnostic microbiology.\n\nShe now works as an SEO Copywriter at Resolution Digital, where she combines her scientific training with research-driven content strategy. She is certified in Google Analytics and Google Business Profile (GBP), and brings a data-informed approach to science communication writing content that is not only accurate but structured to reach and serve the students who need it most.\n\nAt microbeonline, Ashma contributes articles primarily in virology and molecular biology, areas she finds most compelling for their mechanistic depth and their growing clinical relevance. Her writing reflects the same standard the site is built on: factual rigor, clear explanation of the *why* behind microbiology concepts, and content that helps students move from memorization to genuine understanding.\n\nShe is passionate about making complex microbiological concepts accessible without sacrificing accuracy; a skill that sits at the intersection of her scientific training and her professional work in content and SEO.",78,{"slug":133,"name":134,"description":135,"image":136,"body":137,"postCount":138},"sushmita-baniya","Sushmita Baniya","Author \u002F Contributor","https:\u002F\u002Fassets.microbeonline.com\u002Fauthors\u002Fsushmita-baniya-1.png","Sushmita Baniya holds an M.Sc. in Medical Microbiology from Tribhuvan University (National College), with a research focus in Genetics and Molecular Biology. She is actively involved in teaching and research in the field of microbiology.",26,{"slug":140,"name":141,"description":135,"image":142,"body":143,"postCount":144},"samikshya-acharya","Samikshya Acharya","https:\u002F\u002Fassets.microbeonline.com\u002Fauthors\u002Fsamikshya-acharya.jpeg","Samikshya Sharma completed her postgraduate studies in Medical Microbiology at the Central Department of Microbiology, Tribhuvan University, Nepal. She contributes to Microbeonline with the goal of making foundational and clinical microbiology concepts clear and useful for students in medical, laboratory science, and allied health programs.",20,{"slug":146,"name":147,"description":135,"image":42,"body":148,"postCount":149},"alisha-tripathi","Alisha Tripathi","Alisha Tripathi holds an M.Sc. in Medical Microbiology from National College, Tribhuvan University. With over a year of teaching experience, her academic interests span Molecular Biology, Immunology, and Genetics.",6,{"slug":151,"name":152,"description":153,"image":42,"body":154,"postCount":155},"aastha-shrestha","Aastha Shrestha"," Author \u002F Contributor","Aastha Shrestha is a Biotechnology graduate with an M.Sc. from National College, Tribhuvan University. Her academic interests center on Molecular Biology and Immunology; two fields that are increasingly converging in modern diagnostic and clinical microbiology. \n\nShe contributes to Microbeonline with the goal of making complex concepts in these areas approachable and exam-relevant for students across medical, biotechnology, and laboratory science programs.",9,{"slug":157,"name":158,"description":159,"image":42,"body":42,"postCount":160},"guest-author","Guest Author","Guest Author \u002F Contributor",1,{"slug":162,"name":43,"description":135,"image":163,"body":164,"postCount":165},"srijana-khanal","https:\u002F\u002Fassets.microbeonline.com\u002Fauthors\u002Fsrijana-khanal-1.png","Srijana Khanal is a microbiology educator with nearly a decade of teaching experience, including her role as faculty in the Microbiology Department at National College, NIST. \n\nHer time in the classroom has given her a clear sense of where students struggle and what explanations actually work, a perspective that directly shapes how she writes.\n\nHer academic interests span Immunology, Genetics, Basic Sciences, and Research Methodology, and she brings the same rigor to her writing that she brought to teaching. Alongside academic writing, she has a passion for creative writing -- an instinct that shows in her ability to make dense scientific material readable without sacrificing accuracy.\n\nShe contributes to Microbeonline to extend her teaching reach beyond the classroom, helping medical and laboratory science students across the region build a stronger foundation in microbiology.",17,{"slug":167,"name":168,"description":159,"image":42,"body":42,"postCount":160},"dr-poonam-acharya","Dr. Poonam Acharya",{"slug":170,"name":171,"description":172,"image":173,"body":174,"postCount":175},"nisha-rijal","Nisha Rijal","Microbiologist and AMR Specialist Kathmandu, Nepal","https:\u002F\u002Fassets.microbeonline.com\u002Fauthors\u002Fnisha-rijal-1.png","Nisha Rijal is a microbiologist with nearly 15 years of frontline diagnostic and surveillance experience at the National Public Health Laboratory (NPHL), national reference laboratory under the Department of Health Services, Nepal. She currently works as an AMR Support Officer at the World Health Organization (WHO), Nepal, where her work focuses on strengthening antimicrobial resistance surveillance systems and translating AMR data into actionable public health response.\n\nHer research, published in peer-reviewed journals and cited over 220 times, spans some of the most clinically significant infectious disease challenges in Nepal and South Asia: antimicrobial resistance trends in *Vibrio cholerae* across an 11-year national surveillance dataset, sero-epidemiology of scrub typhus in patients with acute febrile illness, lower respiratory tract infections in HIV-positive patients, and gonococcal resistance surveillance. She was a contributor to Nepal's National Antimicrobial Resistance Containment Action Plan, a foundational policy document for AMR governance in Nepal. You can find list of [Nisha Rijal's article here in Google Scholar.](https:\u002F\u002Fscholar.google.com\u002Fcitations?user=N-Ruq54AAAAJ&hl=en)\n\nThis depth of experience is visible in her writing at Microbeonline. Her 53 published articles cover bacteriology, parasitology, mycology, immunology, and laboratory techniques, and are consistently among the most detailed and clinically grounded content on the site. She brings to every article the same standard that national reference laboratory work demands: methodological precision, awareness of real diagnostic constraints, and an understanding of what results actually mean for patient care in resource-limited settings.\n\nHer areas of particular expertise include antimicrobial susceptibility testing and resistance mechanism detection, quality assurance in clinical microbiology, and laboratory-based infectious disease surveillance.\n\n---\n\n*Nisha Rijal contributes to Microbeonline in a personal capacity. Her views and writing do not represent the positions of the World Health Organization or any other institution.*",54,{"slug":177,"name":178,"description":179,"image":180,"body":181,"postCount":160},"padma-shrestha","Padma Shrestha","Author","https:\u002F\u002Fassets.microbeonline.com\u002Fauthors\u002Fpadma-shrestha.png","Padma Shrestha is from Kathmandu, Nepal. She has completed Masters degree in Medical microbiology from Tribhuvan University. She has great interest in Microbiology and Molecular Biology.",[183,190,196,201,206,211,215,219,223,228,232,237,241,246,251,255,259,263,268,272,276,280,284,289,293,297,301,305,310,315,319,323,327,331,335,339,343,347,351,355,359,363,367,371,375,379,383,387,392,396,400,404,408,412,416,420,424,428,432,436,440,444,448,452,456,460,464,467,470,474],{"slug":184,"name":185,"description":186,"image":187,"body":188,"postCount":189},"gram-negative-cocci","Gram-Negative Cocci and Coccobacilli","Neisseria, Moraxella, Haemophilus and related gram-negative coccal organisms","https:\u002F\u002Fassets.microbeonline.com\u002Ftags\u002Fgram-negative-cocci.png","# Gram Negative Cocci\n\nNeisseria gonorrhoeae, Neisseria meningitides, Moraxella catarrhalis, and other Neisseria spp. are clinically relevant gram-negative cocci.\n\nN. gonorrhoeae is the leading cause of sexually transmitted disease whereas N. meningitides is a leading cause of fatal bacterial meningitis.",14,{"slug":191,"name":192,"description":193,"image":42,"body":194,"postCount":195},"microscopy","Microscopy","Microscope types, components, and microscopy techniques","These are list of blog posts related to microscopy. ",12,{"slug":197,"name":198,"description":199,"image":42,"body":42,"postCount":200},"gram-positive-cocci","Gram-Positive Cocci","Staphylococcus, Streptococcus, Enterococcus, Micrococcus — organisms, diseases, and identification tests",11,{"slug":202,"name":203,"description":204,"image":42,"body":42,"postCount":205},"gram-negative-rods","Gram-Negative Rods (Other than Enterobacteriaceae)","\u003Cp>Gram negative rods other than members of Enterobacteriaceae family such as  Pseudomonas, Acinetobacter and related organisms\u003C\u002Fp>",5,{"slug":207,"name":208,"description":209,"image":42,"body":42,"postCount":210},"gram-positive-rods","Gram-Positive Rods","Bacillus, Clostridium, Listeria, Corynebacterium, Actinomyces and related organisms",8,{"slug":212,"name":213,"description":214,"image":42,"body":42,"postCount":200},"mycobacteria","Mycobacteria","Mycobacterium tuberculosis, leprosy, atypical mycobacteria, and acid-fast organism diagnosis",{"slug":216,"name":217,"description":218,"image":42,"body":42,"postCount":200},"anaerobic-bacteriology","Anaerobic Bacteriology","Anaerobic organisms, anaerobic culture methods, and anaerobic infection diagnosis",{"slug":220,"name":221,"description":222,"image":42,"body":42,"postCount":195},"enterobacteriaceae","Enterobacteriaceae","Identification, differentiation, and clinical significance of Enterobacteriaceae family members",{"slug":224,"name":225,"description":226,"image":42,"body":42,"postCount":227},"spirochetes","Spirochetes","Treponema, Leptospira, Borrelia and spirochetal infections",7,{"slug":229,"name":230,"description":231,"image":42,"body":42,"postCount":189},"food-microbiology","Food Microbiology","Food-borne pathogens, food safety, spoilage, and preservation",{"slug":233,"name":234,"description":235,"image":42,"body":42,"postCount":236},"antimicrobial-susceptibility-testing","Antimicrobial Susceptibility Testing","Methods for testing antibiotic susceptibility in clinical microbiology",21,{"slug":238,"name":239,"description":240,"image":42,"body":42,"postCount":210},"antimicrobials-moa-amr","Antimicrobials (MOA & AMR)","Mechanisms, detection, and clinical significance of antimicrobial resistance",{"slug":242,"name":243,"description":244,"image":42,"body":42,"postCount":245},"sterilization-disinfection","Sterilization and Disinfection","Methods of sterilization and disinfection in healthcare and laboratory settings",10,{"slug":247,"name":248,"description":249,"image":42,"body":42,"postCount":250},"specimen-collection-transport","Specimen Collection and Transport","Collection, handling, and transport of clinical specimens for microbiological testing",27,{"slug":252,"name":253,"description":254,"image":42,"body":42,"postCount":236},"bacterial-structure-physiology","Bacterial Structure and Physiology","Bacterial cell structure, growth, physiology, and environmental factors affecting growth",{"slug":256,"name":257,"description":42,"image":42,"body":258,"postCount":149},"horizontal-gene-transfer","Horizontal Gene Transfer","Articles related to **Horizontal Gene Transfer**",{"slug":260,"name":261,"description":42,"image":42,"body":262,"postCount":245},"chromatography","Chromatography","Information about chromatographic techniques.",{"slug":264,"name":265,"description":266,"image":42,"body":267,"postCount":227},"electrophoresis","Electrophoresis","Information about Electrophoresis Techniques ","Detailed information  about Electrophoresis Techniques ",{"slug":113,"name":269,"description":270,"image":42,"body":271,"postCount":149},"PCR Techniques","Information about various types of Polymerase Chain Reaction Techniques ","More detailed information about various types of Polymerase Chain Reaction Techniques ",{"slug":273,"name":274,"description":275,"image":42,"body":42,"postCount":149},"bacteriophage","Bacteriophage","Description about Bacteriophage.",{"slug":277,"name":278,"description":279,"image":42,"body":42,"postCount":149},"malaria","Malaria","It is the collections of articles regarding malarial disease. ",{"slug":281,"name":282,"description":283,"image":42,"body":42,"postCount":149},"anaerobic-culture-techniques","Anaerobic Culture Techniques","Posts related with Anaerobic Culture Techniques.",{"slug":285,"name":286,"description":287,"image":42,"body":42,"postCount":288},"immunoassays","Immunoassays","You will get information about all the diagnostic tests that rely on the specific binding between an antigen and an antibody to detect or quantify a substance.",19,{"slug":290,"name":291,"description":292,"image":42,"body":42,"postCount":227},"biosafety-levels","Biosafety levels ","Articles related to Biosafety Levels",{"slug":294,"name":295,"description":296,"image":42,"body":42,"postCount":205},"environmental-factors","Environmental Factors ","In this case we are talking about growth requirements of microorganisms with deep dive in environmental factors that affect the growth. ",{"slug":298,"name":299,"description":300,"image":42,"body":42,"postCount":149},"pipette","Pipette","Posts related with Pipette. ",{"slug":302,"name":303,"description":304,"image":42,"body":42,"postCount":210},"bacteriology-mcqs","Bacteriology MCQs","This sections lists MCQs in Bacteriology.",{"slug":306,"name":307,"description":308,"image":42,"body":42,"postCount":309},"parasitology-mcqs","Parasitology MCQs","This section lists MCQs in Parasitology.",2,{"slug":311,"name":312,"description":313,"image":42,"body":42,"postCount":314},"virology-mcqs","Virology MCQs","This is the collections of Multiple Choice Questions in Virology.",4,{"slug":316,"name":317,"description":318,"image":42,"body":42,"postCount":205},"mcqs-in-microbiology","MCQs in Microbiology","This section lists the collections of Multiple Choice Questions in General Microbiology Topics. ",{"slug":320,"name":321,"description":322,"image":42,"body":42,"postCount":210},"immunology-mcqs","Immunology MCQs","In this section; we are posting collections of Multiple Choice Questions about Immunology. ",{"slug":324,"name":325,"description":326,"image":42,"body":42,"postCount":155},"microbial-curiosities","Microbial Curiosities","In this clusters, we are posting interesting and unique information about Microorganisms. ",{"slug":328,"name":329,"description":330,"image":42,"body":42,"postCount":236},"bacterial-culture-media","Bacterial Culture Media","Posts related to Bacterial Culture Media. ",{"slug":332,"name":333,"description":334,"image":42,"body":42,"postCount":149},"fungal-culture-media","Fungal Culture Media","Posts related to Fungal Culture Media.",{"slug":336,"name":337,"description":338,"image":42,"body":42,"postCount":205},"motility-test","Motility Test","This lists the procedure regarding various tests methods for bacterial motility.",{"slug":340,"name":341,"description":342,"image":42,"body":42,"postCount":245},"bacterial-enumeration","Bacterial enumeration","These posts are related to isolation and enumeration of bacteria. ",{"slug":344,"name":345,"description":346,"image":42,"body":42,"postCount":309},"gram-positive-coccobacillus","Gram-positive coccobacillus","List of Gram Positive Coccobacilli",{"slug":348,"name":349,"description":350,"image":42,"body":42,"postCount":314},"dimorphic-fungi","Dimorphic Fungi","This is about various dimorphic fungi. ",{"slug":352,"name":353,"description":354,"image":42,"body":42,"postCount":227},"bacterial-classification","Bacterial Classification","These posts are related with various approaches used for the classification of Bacteria. ",{"slug":356,"name":357,"description":358,"image":42,"body":42,"postCount":205},"immunofluorescence","Immunofluorescence ","Various Tests related to Immunofluorescence ",{"slug":360,"name":361,"description":362,"image":42,"body":42,"postCount":155},"antibody-mediated-immunity","Antibody-mediated Immunity","This clusters links the articles that are sharing insights about Antibody-mediated immunity. ",{"slug":364,"name":365,"description":366,"image":42,"body":42,"postCount":227},"hypersensitivity","Hypersensitivity","Articles related to Hypersensitivity.",{"slug":368,"name":369,"description":42,"image":42,"body":42,"postCount":370},"haemophilus","Haemophilus",3,{"slug":372,"name":373,"description":374,"image":42,"body":42,"postCount":314},"sexually-transmitted-infections-stis","Sexually transmitted infections (STIs)","This is the clusters of infections that are transmitted sexually. ",{"slug":376,"name":377,"description":378,"image":42,"body":42,"postCount":195},"adaptive-immunity","Adaptive Immunity","Blog posts related to B Cell Immunity and T Cell Immunity.",{"slug":380,"name":381,"description":382,"image":42,"body":42,"postCount":189},"fungal-diagnostics","Fungal Diagnostics","Various methods used for the Diagnosis of Fungal Infections. ",{"slug":384,"name":385,"description":386,"image":42,"body":42,"postCount":205},"laboratory-storage-and-preservation","Laboratory Storage and Preservation","Articles about Laboratory Storage of Antimicrobial Disk, Test organisms and Equipment used for this process. ",{"slug":388,"name":389,"description":390,"image":42,"body":391,"postCount":149},"laboratory-heating-equipment","Laboratory Heating Equipment","A guide to laboratory heating equipment, including hot plates, water baths, Bunsen burners, incubators, and dry baths, and how to choose the right one for each task.","Laboratory heating equipment covers the instruments that warm, melt, incubate, or sterilize samples and media in a microbiology laboratory. Each one delivers heat differently. \n\nA hot plate gives high, direct, dry heat; a water bath gives gentle, even, wet heat up to about 100°C; a Bunsen burner gives an open flame for rapid, very high heat; an incubator holds cultures at a steady temperature over hours or days; and a dry bath heats small tubes without water. Choosing the right one depends on the temperature you need, how precise it must be, and whether the sample can tolerate direct or open-flame heat.\n\nThe articles below cover each piece of heating equipment in detail, including its parts, working principle, uses, and the mistakes that most often go wrong at the bench.",{"slug":393,"name":394,"description":395,"image":42,"body":42,"postCount":210},"laboratory-glassware","Laboratory Glassware","Posts about Laboratory Glassware. ",{"slug":397,"name":398,"description":399,"image":42,"body":42,"postCount":149},"helminths","Helminths","In this section, we are covering properties, life cycle, pathogenesis and laboratory diagnosis of Helminths\u002FHelminthic infestations. ",{"slug":401,"name":402,"description":403,"image":42,"body":42,"postCount":149},"protozoan-parasite","Protozoan Parasite","In this cluster, we are covering protozoan parasites. ",{"slug":405,"name":406,"description":407,"image":42,"body":42,"postCount":160},"tests-for-gram-positive-cocci","Biochemical Tests for Gram Positive Cocci","This is the lists of Biochemical Tests that are used for Gram Positive Cocci. ",{"slug":409,"name":410,"description":411,"image":42,"body":42,"postCount":245},"bacterial-staining-technique","Bacterial Staining Technique","Lists of various staining techniques that are used to stain bacteria. ",{"slug":413,"name":414,"description":415,"image":42,"body":42,"postCount":144},"enzyme-tests","Enzyme Tests","\u003Cp>Various Biochemical Test that are based on enzymatic activity of the microorganisms. \u003C\u002Fp>",{"slug":417,"name":418,"description":419,"image":42,"body":42,"postCount":200},"carbohydrate-utilization","Carbohydrate Utilization","\u003Cp>Various biochemical tests which are related to Carbohydrate fermentation or Utilization\u003C\u002Fp>",{"slug":421,"name":422,"description":423,"image":42,"body":42,"postCount":205},"susceptibility-based-id","Susceptibility-based ID","\u003Cp>These are susceptibility based identification test such as optochin sensitivity, bacitracin sensitivity etc. \u003C\u002Fp>",{"slug":425,"name":426,"description":427,"image":42,"body":42,"postCount":314},"microbial-metabolism","Microbial Metabolism","\u003Cp>Tests about Microbial Metabolism. \u003C\u002Fp>",{"slug":429,"name":430,"description":431,"image":42,"body":42,"postCount":210},"substrate-utilization","Substrate Utilization","\u003Cp>The test in which a non-sugar carbon\u002Fnitrogen source is used or degraded (citrate, malonate, decarboxylases, indole, PAD).\u003C\u002Fp>",{"slug":433,"name":434,"description":435,"image":42,"body":42,"postCount":370},"atypical-pneumonia","Atypical Pneumonia","\u003Cp>Organisms responsible for Atypical Pneumonia. \u003C\u002Fp>",{"slug":437,"name":438,"description":439,"image":42,"body":42,"postCount":205},"antigen","Antigen","\u003Cp>Various articles related to Antigens.\u003C\u002Fp>",{"slug":441,"name":442,"description":443,"image":42,"body":42,"postCount":227},"innate-immunity","Innate Immunity","\u003Cp>Articles related to Innate Immunity. \u003C\u002Fp>",{"slug":445,"name":446,"description":447,"image":42,"body":42,"postCount":314},"respiratory-tract-infection","Respiratory Tract Infection","\u003Cp>In this cluster, you can see various etiological agents that causes respiratory tract infection. \u003C\u002Fp>",{"slug":449,"name":450,"description":451,"image":42,"body":42,"postCount":205},"torch-infection","TORCH Infection","\u003Cp>In this section; you can find articles related with TOCH infection. \u003C\u002Fp>",{"slug":453,"name":454,"description":455,"image":42,"body":42,"postCount":227},"microbiology-for-beginners","Microbiology for Beginners","\u003Cp>These articles are very basic articles, which will share general concepts in Microbiology. \u003C\u002Fp>",{"slug":457,"name":458,"description":459,"image":42,"body":42,"postCount":149},"dna-replication","DNA Replication","\u003Cp>Articles related to DNA and Replication of DNA. \u003C\u002Fp>",{"slug":461,"name":462,"description":463,"image":42,"body":42,"postCount":227},"genetic-code","Genetic Code","\u003Cp>Articles related to Genetic Code.\u003C\u002Fp>",{"slug":81,"name":465,"description":466,"image":42,"body":42,"postCount":205},"Molecular Technique","\u003Cp>Posts related to Molecular Techniques. \u003C\u002Fp>",{"slug":468,"name":469,"description":42,"image":42,"body":42,"postCount":160},"colorimetric-assay","Colorimetric Assay ",{"slug":471,"name":472,"description":473,"image":42,"body":42,"postCount":205},"pharmaceutical-microbiology","Pharmaceutical Microbiology","\u003Cp>Various articles related to Pharmaceutical Microbiology\u003C\u002Fp>",{"slug":475,"name":476,"description":42,"image":42,"body":42,"postCount":370},"blood-and-immune-cells","Blood and Immune Cells"]