which virus causes influenza?
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A (H1N1) virus causes influenza.
hemangsaini2003:
doesnt h1n1 cause swine flu?
thanks...just got to know that h1n1 is same as influenza a
Answered by
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Types of Influenza Viruses. There are four types of influenza viruses: A, B, C and D. Human influenza A and B viruses cause seasonal epidemics of disease almost every winter in the United States. The emergence of a new and very different influenza A virus to infect people can cause an influenzapandemic.
thanks for your answer..may i know the name of the virus
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