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Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
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yusuki yusuki
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9 years ago
Why does the influenza virus cause recurrent infection in individuals?
a.   Elderly patients are predisposed to secondary infections.
b.   The virus is transmitted by numerous routes.
c.   The virus is very difficult to destroy.
d.   Viral mutation reduces immunity from prior infections.
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monosaccharidemonosaccharide
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9 years ago
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yusuki Author
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#2
9 years ago
What I needed, thanks.
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#3
9 years ago
You're welcome Happy Dummy
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