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2 D 10242-E

What are the diseases caused by Staphylococcus aureus ?
Write on WIDAL test.

What is an endemic infection ? Give an example.

What is UTI ? Name a bacteria that cause UTI.
Comment on the action of cholera toxin.

What is an opportunistic pathogen ? Give an example.

Name the media used to grow Mycobacterium tuberculosis in laboratory. Comment on its colony
morphology.
(10 x 2 = 20 marks)

Part C (Short Essay Questions)

Answer any six questions.
Each question carries 5 marks.

Comment on the various methods of transmission of infection.

Write briefly about the normal flora of human gastrointestinal tract. Add a note on its merits.

Briefly explain the pathogenesis and symptoms of disease caused by Leptospira interrogans.

Explain the pathogenesis, symptoms and lab diagnosis of gonorrhoea.

Write a note on laboratory diagnosis of tuberculosis.

What are the various sources of Infection? Explain.

Explain the pathogenicity of Clostridium tetani.

Briefly explain the pathogenesis and symptoms of disease caused by Corynebacterium diphtheriae.
(6 x 5 = 30 marks)

Part D (Essay Questions)

Answer any two questions.
Each question carries 12 marks.
Write an essay on morphology, cultural characteristics, biochemical characters, pathogenicity,
laboratory diagnosis and prevention of typhoid.

Explain in detail the methods used for collection and transport of various clinical specimens for

microbiological examination.

Write an essay on the morphology, culture, biochemical, pathogenicity, laboratory diagnosis and
prevention of diseases caused by Rickettsia.
(2 x 12 = 24 marks)

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