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Author8 Posts
  #1

Periodic world-wide pandemics of respiratory infections occur because of shifts in the antigenic properties of which of the following viruses?

A) Coronavirus
B) Influenza A
C) Influenza B
D) Influenza C
E) Parainfluenza virus
F) Respiratory syncytial virus
G) Rhinovirus


  #2

B

  #3

b

  #4

b

  #5

Influenza A

choice B

  #6

Agree B

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  #7

Influenza B

  #8

Sorry, the correct answer is B. Influenza A









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