Flu has overtaken covid in infections and hospitalizations during the winter respiratory virus season, and their virulence is ...

While current flu shots need to be updated each season, scientists are finding new ways to make vaccine that could last much longer and cover more strains.

Another eight US children were confirmed to have died of influenza infections last week, for a total of 79 this respiratory virus season, the Centers for Disease Control and Prevention (CDC) reported ...

We asked a doctor for his expert take.

Flu season is not over yet, experts warn. Is there a second wave coming? Here's how to protect yourself as influenza keeps spreading.

For the first time, scientists have been able to watch the flu virus live as it infects human airway cells. They developed a ...

Sonoma and Napa counties are seeing flu infections rise after weeks of declining cases. The growing number of pediatric deaths nationally points to a dangerous strain, experts say.

BARCELONA, Feb 27 (Reuters) - Spain has informed the World Health Organization of a possible infection with the swine flu virus in its A(H1N1)v variant that may have been transmitted between humans, a ...

A little-known variant of bird flu has evolved to become better adapted to infecting people and could pose a pandemic threat to humans, a team of researchers has warned.

As more outbreaks of HPAI are confirmed in South Korea’s poultry flocks, further cases in domestic and wild birds are also reported widely across Asia.

More than 1.2 million laying hens in Wisconsin have been struck by highly pathogenic avian influenza, while new flock infections have also been reported in the states of Indiana and Delaware.