With flu cases hitting a season high in late December, staying healthy within the coming weeks could become more difficult.

Researchers have developed a nasal spray for flu prevention that has shown promising results in preliminary human trials.

H5N1 avian influenza, commonly known as bird flu, has long ceased to be just a problem for birds. Since its arrival in the ...

Influenza spreads most aggressively during winter months when people gather indoors and respiratory droplets circulate more easily in enclosed spaces. The virus becomes particularly difficult to avoid ...

Flu levels are rising once again across the United States, with emergency department visits increasing among children over 5, ...

The flu epidemic continues to go down. The positivity rate and other benchmarks for the week ending on Jan. 24 have dropped ...