(NEXSTAR) – The flu is spreading far and wide ... about 97% have turned up positive for influenza A. Influenza A is further ...

The spread of H5N1 avian influenza virus in the United States has sparked fears of a potential pandemic. The H5N1 virus is ...

The centre said that the city’s dominating flu virus strain had shifted from influenza A subtype H3 seen in the January to March period to subtype H1 recorded in the most recent cases.