Giemsa stain is a type of Romanowsky stain, named after Gustav Giemsa, a German chemist who created a dye solution. It was primarily designed for the demonstration of malarial parasites in blood smears, but it […]
This post was most recently updated on July 23rd, 2019Brain Heart Infusion (BHI) broth is a general-purpose liquid medium used for the cultivation and maintenance of a wide variety of fastidious and non-fastidious microorganisms, including […]
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 […]
This post was most recently updated on March 21st, 2019Selenite 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 […]
This post was most recently updated on August 10th, 2019Staib medium also known as bird seed agar is a selective and differential medium for isolation of Cryptococcus neoformans from clinical specimens and differentiation of it […]
This post was most recently updated on March 21st, 2019 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 […]
Chromogenic Agar Media are culture medium used to isolate, identify, and differentiate specific microorganism from a heterogeneous population. The medium contains chromogenic substrate which is utilized by the microorganism to give colored colonies that is […]
This post was most recently updated on February 26th, 2019The initial encounter of a naïve immune-competent lymphocyte with an antigen induces a primary immune response; a later contact of the host with the same antigen […]
Spread plate technique is a method employed to plate a liquid sample for the purpose of isolating or counting the bacteria present in that sample. A perfect spread plate technique will results visible and isolated colonies of bacteria […]
This post was most recently updated on March 26th, 2018Most Probable Number (MPN) is a method used to estimate the concentration of viable microorganisms in a sample by means of replicate liquid broth growth in […]
This post was most recently updated on February 20th, 2019Thioglycollate broth is the enrichment broth most frequently used in diagnostic bacteriology. This broth supports growth of anaerobes, aerobes, microaerophilic, and fastidious microorganisms. It contains many […]
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