Culture is one of the most widely used laboratory diagnostic tool. Culture helps microbiologist for the identification and characterisation of the causative agents of the disease. To perform antimicrobial susceptiblity test also, microbiologist have to […]
Leprosy is an age-old disease, associated with social stigma; historical records and literature show that people afflicted with leprosy have often been ostracized by their communities and families. Also known as Hansen’s disease, leprosy is […]
MCQ Bacteriology 21: Which of the following bacteria is not the most common bacterial pathogen causing diarrhea? a. Shigella spp b. Salmonella spp c. Enterococcus faecalis d. Campylobacter spp MCQ Bacteriology 22: Which of the following […]
Coagulase test is used to differentiate Staphylococcus aureus (positive) from Coagulase Negative Staphylococcus (CONS). Coagulase is an enzyme produced by S. aureus that converts (soluble) fibrinogen in plasma to (insoluble) fibrin. Staphylococcus aureus produces two […]
Indole test is used to determine the ability of an organism to split amino acid tryptophan to form the compound indole. Tryptophan is hydrolyzed by tryptophanase to produce three possible end products – one of […]
Enumeration of microorganisms is especially important in dairy microbiology, food microbiology, and water microbiology. Direct Microscopic count/ Total cell count Direct microscopic counts are possible using special slides known as counting chambers, consisting of […]
Culture media contains nutrients and physical growth parameters necessary for microbial growth. All microorganisms cannot grow in a single culture medium and in fact, many can’t grow in any known culture medium. Organisms that cannot […]
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