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mcke mcke
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6 years ago
Two different antigens vary in different strains of influenza virus, and every year, a vaccine is developed to include the best choice of them. What are the antigens?
 
  a. the hemagglutinin and the neuraminidase
  b. the Paul-Bunnell and the serum sickness antigens
  c. the EBNA and VCA antigens
  d. GP120 and GP41
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jjacksonmiajjacksonmia
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6 years ago
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mcke Author
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6 years ago
Thanks for your help!!
wrote...

Yesterday
You make an excellent tutor!
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2 hours ago
Good timing, thanks!
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