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Color-enhanced scanning electron micrograph showing Salmonella Typhimurium (red) invading cultured human cells

Salmonella is a genus of gram negative rods, which are motile, non-spore forming and non-encapsulated facultative anaerobes. These bacteria cause …

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Sugar Sets

TSI agar

Sugar set comprises of certain biochemical tests which are used in the identification of enterobacteriaceae. Composition Carbohydrates comprising standard sugar …

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Ovas, Cysts and Eggs of Common Parasites

Trophozoites of Entamoeba histolytica

To examine the ovas, cysts or eggs of parasites, take a drop of stool. Mix it with normal saline on …

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Parasitology -Important Terms

Taenia solium

A parasite is a micro-organism which is entirely dependent for all or part of its life cycle and metabolic requirements …

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Pathology of Leishmaniasis

Leishmania donovani in bone marrow

Leishmaniasis is a group of diseases caused by Leishmania species, which are obligate intracellular parasites, belonging to phylum protozoa. Classification …

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Bacteria Causing Diseases in Man

Neisseria meningitidis

A number of diseases are caused by bacteria in man. Some common diseases and their causative bacteria are given below: …

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Neisseria Meningitidis

Neisseria meningitidis

Neisseria meningitidis, a gram negative cocci, is one of the three important bacteria causing meningitis. People with deficiencies of late …

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Culture Media

Culture media

The main types of culture media are: Basic media Enriched and enrichment media Selective media Differential media Transport media Basic …

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Catalase Test -Principle, Procedure and Interpretations

staphylococcus aureus

It is a basic test to differentiate between Staphylococci and Streptococci. Both are gram positive cocci. Principle Catalase is produced …

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Urine Routine Examination

urine routine examination

Urine routine examination is described under the following headings: Collection of Sample Collect early morning, mid-stream urine in a wide …

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