Proteus are Gram-negative rod-shaped bacteria of the family Enterobacteriaceae. They are widely distributed in nature and also occur as normal intestinal flora of humans. An opportunistic pathogen, they are one of the common cause of […]
Gram staining requires the use of different chemical reagents which can be purchased in ready to use forms from commercial suppliers or gram stain reagents can be prepared at the laboratory by mixing different chemicals […]
Bacteria are often preserved in microbiology laboratory for many purposes such as to re-examine or to characterize further or to send to a national reference laboratory for confirmation etc. Selection of a particular storage method […]
Haemophilus influenzae is a pleomorphic, gram negative coccobacillus which is divided into two groups: unencapsulated (non-typeable) and encapsulated. Encapsulated strains of Haemophilus influenzae are further classified into 6 different serotypes (a-f) based on the presence […]
Streptococcus pneumoniae (pneumococcus) is one of the most common causes of pneumonia, septicemia, and meningitis in children and adults both in developing and developed countries. S. pneumoniae is the most common causative agent in community-acquired […]
Skin is the body’s largest and thinnest organ which serves as an anatomical barrier between the sterile internal organs and the external environment which is teemed with microorganisms. Break in the skin surface may results […]
MRSA (methicillin-resistant Staphylococcus aureus) is a type of staph bacteria that is resistant to several antibiotics. Historically, staph strains that are oxacillin and methicillin resistant are termed as MRSA. MRSA are resistant to all ß-lactam […]
MALDI-TOF mass spectrometry is a versatile analytical technique to detect and characterize mixtures of organic molecules. In Microbiology, it is being used as a rapid, accurate and cost-effective method for the identification of microorganism (bacteria, […]
Deoxycholate Citrate Agar (DCA) is a selective and differential medium, recommended for the isolation of enteric pathogens particularly Salmonella and Shigella species. Deoxycholate Citrate Agar is a modification of Deoxycholate Agar formulated by Leifson. DCA […]
Selenite broth is used as an enrichment medium for the isolation of Salmonella and Shigella from stool, urine, water and food products. It is the most widely used enrichment medium to isolate Salmonella Typhi from […]
Bismuth Sulfite Agar (BS) is a selective as well as differential medium for isolation and presumptive identification of Salmonella spp especially Salmonella Typhi. Salmonella spp are the causative agent of various diseases like gastroenteritis, sepsis, enteric […]
Blood culture is one of the most simple and commonly used investigation to establish the etiology of bloodstream infections (i.e. detection of bacteremia, sepsis and fungemia). Early diagnosis and accurate identification of the bacteria or […]
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