Low vaccination rates may also be contributing to this year’s sick season. As of late January, U.S. vaccine uptake was well ...

Trump’s pick for HHS secretary has his sights on halting infectious disease research.

The worst flu season in years is swamping California, prompting a renewed surge in hospitalizations as officials warn the ...

Influenza levels in the US are the highest they've been in 15 years amid winter weather and a second wave of the virus.