A new strain called H3N2 subclade K has emerged, raising concerns that the body may not be able to fight it off as well.

Doctors say that so far, kids are hit hardest with the flu. The flu shot is helping keep them out of the hospital.

Jeb Teichman’s phone rang just before midnight. As a pediatrician, he has received many late-night emergency calls. This time, the call was about his 29-year-old son. Brent Teichmanhad been suffering ...

The CDC recommends getting a flu shot by the end of October, but it is never too late to get vaccinated. The CDC recommends that everyone aged 6 months and older receive a flu shot each season. This ...

It is not yet clear whether the new H3N2 Flu A subclade K subvariant will reduce the efficacy of the flu vaccine this season.

The United States may be heading into its second severe flu season in a row, driven by a mutated strain called subclade K that’s behind early surges in the United Kingdom, Canada and Japan. Now, with ...

SAN DIEGO — Doctors at Rady Children's Hospital are expressing serious concern about this year's flu season, citing dangerously low vaccination rates among children in San Diego County as the region ...