Influenza cases continue to mount with the virus reaching activity levels in the U.S. not seen for the last 15 years, ...

The patient was experiencing "flu-like symptoms" and had "health conditions that can make people more vulnerable to illness," ...

Delays in CDC analyses of infectious disease threats and agency silence will harm Americans, doctors and ...

Another spillover of the H5N1 bird flu virus from wild birds to dairy cattle appears to have occurred, this time in Arizona.