Difference between influenza a and b

Influenza virus a is more severe though A and B can be responsible for pandemic. Type A is seen in early spring and early winter. Type B is seen at any time of the year. Type A infects birds, humans and animals while B infects mammals. Type A has several serotypes but Type B does not.

TAGS: What is the difference between HIV and influenza? What is the difference between Horizon A and B? What is the difference between type a and type b influenza? What is influenza B? What is the difference between h1a1 and influenza a?

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