INFECTIOUS DISEASES

Question 1

Which of the following viruses have a high mutation rate for immune invasion?
A. HIV
B. Influenza virus
C. Rhinoviruses
D. A and B

Answer 1

A and B

Question 2

Which of the following employ genetic reassortment for immune evasion (2 possible answers)?
A. HIV
B. Influenza virus
C. Rotavirus
D. Rhinoviruses
E. NOTA

Answer 2

B and C

Question 3

Which of the following have large variety of serotypes for immune evasion (2 possible answers)?
A. Rhinoviruses
B. Rotavirus
C. Trypanosoma sp.
D. Streptococus pneumonia
E. Niesseria gonorrhea

Answer 3

A and D

Question 4

Which of the following does not employ genetic rearrangement for immune evasion?
A. Borrelia burgdoferi
B. Neisseria gonorrhea
C. Streptococcus pneumoniae
D. Trypanosoma sp.
E. Plasmodium sp.

Answer 4

C. Streptococcus pneumoniae

Question 5

Which microorganism has a special capsule containing sialic acid that will not bind C3b; hence, resisting complement and opsonization directed phagocytosis?

Answer 5

E. coli

Question 6

Which organisms have contains proteins A and C that binds to Fc portion of antibodies and inhibits phagocytosis?

Answer 6

Protein A of S. aureus and Protein M of S. pyogenes

Question 7

Which of the following blocks fusion of lysosome and phagosome to form phagolysosome, allowing the bacteria to prolifferate unchecked by macrophages?
A. E. coli
B. M. tuberculosis
C. S. pyogenes
D. B. burgdorferi
E. N. gonorrhea

Answer 7

B. M. tuberculosis

Question 8

What is the pore-forming protein produced by Legionella which degrade phagosome membrane?

Answer 8

listeriolysin O