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Category: Bacteriology

link to Leprosy: Etiology, Pathogenesis, Lab Diagnosis

Leprosy: Etiology, Pathogenesis, Lab Diagnosis

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....

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link to Coagulase Test: Principle, Procedure, Results

Coagulase Test: Principle, Procedure, Results

The coagulase test helps to identify Staphylococcus aureus which produces the enzyme coagulase (coagulates) plasma from coagulase-negative staphylococci (CONS). Coagulase is also the virulence factor...

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link to Indole Test: Principle, Procedure, Results

Indole Test: Principle, Procedure, Results

Indole test (Left: negative; Right: positive) Indole test is used to determine the ability of an organism to split amino acid tryptophan to form the compound indole. It is used as part of the...

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link to Cultivation of Aerobic and Anaerobic Bacteria

Cultivation of Aerobic and Anaerobic Bacteria

A. Aerobic Bacteria Main Principle: Provide Oxygen Atmospheric condition is generally satisfactory for the culture of aerobes or facultative anaerobes but for the growth of many aerobes, it is...

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link to Membrane Filter Technique

Membrane Filter Technique

Membrane filters have a known uniform porosity of predetermined size (generally 0.45 µm ) sufficiently small to trap microorganisms. Using the membrane filter technique, sample is passed through the...

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link to Maintenance and Preservation of Organisms

Maintenance and Preservation of Organisms

Once a microorganism has been isolated and grown in pure culture, it becomes necessary to maintain the viability and purity of the microorganism by keeping the pure culture free from contamination....

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Microbeonline.com is an online guidebook on Microbiology, precisely speaking, Medical Microbiology. This blog shares information and resources about pathogenic bacteria, viruses, fungi, and parasites.  We are trying our best to make this site user-friendly and resourceful with timely/updated information about each pathogen, disease caused by them, pathogenesis, and laboratory diagnosis.

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