Variant Influenza A (H3N2v and H1N2v)

Variant influenza A H3N2 virus does not usually infect people but occur in pigs, and are very different from human seasonal H3N2 viruses. Similarly, the variant influenza A H1N2 virus strain is different from the human seasonal H1N2 virus.

Updated Wednesday, 11-Dec-2013 12:32:17 CST