Is the influenza A(H7N9) virus different from influenza A(H1N1) and A(H5N1) viruses?

0 Comment(s)Print E-mail China.org.cn, April 15, 2013
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Yes. All three viruses are influenza A viruses but they are distinct from each other. H7N9 and H5N1 are considered animal influenza viruses that sometimes infect people. H1N1 viruses can be divided into those that normally infect people and those that normally infect animals.

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