Microorganisms and Disease – Section 1

16. Coxsackievirus B3, a subgroup of enteroviruses, commonly causes

A. acute hemorrhagic conjunctivitis
B. muscular dystrophy
C. myocarditis
D. gastroenteritis

Correct Answer: C. myocarditis

17. Prontosil is

A. an effective antibacterial when used in animals
B. an effective antibacterial when used in in-vitro cultures
C. an effective antibacterial both in animals as well as in in-vitro cultures
D. not used as an antibacterial agent

Correct Answer: C. an effective antibacterial both in animals as well as in in-vitro cultures

18. All infections do not cause fever and all fevers are not due to infections which of the following is an example of a non-infectious cause of fever?

A. Typhoid
B. Chickenpox
C. Rheumatic disease
D. Malaria

Correct Answer: C. Rheumatic disease

19. Immunization with which of the following toxoid induces high titer serum antibody, but does not protect from the corresponding disease?

A. Tetanus
B. Botulism
C. Diphtheria
D. Shigellosis

Correct Answer: B. Botulism

20. Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes?

A. The pathogen contains mycolic acid in its cell wall
B. The pathogen can live inside macrophages
C. Antibodies to the pathogen are protective
D. None of these

Correct Answer: C. Antibodies to the pathogen are protective

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