Besides, several zoonotic avian influenza viruses — e.g., H5N1, H7N7, H7N9 or H9N2 — pose a significant pandemic risk since seasonal influenza vaccines fail to protect against the distinct avian ...
1999-Two children in Hong Kong are infected by the H9N2 strain. February 2003 - Eighty-four people in the Netherlands are affected by the H7N7 strain of the virus, one dies. February 7, 2004 - Twelve ...
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