The United States may be heading into its second severe flu season in a row, driven by a mutated strain called subclade K ...

With a new flu virus variant circulating, scientists fear more sickness this winter. The vaccine may be slightly less ...

That late spike in the H3N2 subtype of influenza A comes amid warnings that mutations of the virus overseas are behind an ...

In Asia, the flu is spreading fast. An H3N2 strain called subclade K appears to be the dominant version spreading in other ...

Health officials in the United Kingdom are warning that this year’s flu season for the Northern Hemisphere is looking like it ...

Flu season is beginning, but do Canadians really need a shot amid new reports of a mutating strain? One doctor advises that ...

This year's flu shot may not be an exact match for circulating strains, but public health experts say to get vaccinated ...

E xperts warn that flu season, which typically runs from October to May in the U.S., is slated to be worse than usual this ...

A flu strain that emerged over the summer is causing outbreaks in other countries. The CDC hasn't provided any insights on ...

A seasonal flu virus suddenly mutated in the summer; it appears to evade some of our immunity; has kick-started a flu season ...