The WHO has described it as a seasonal respiratory infection, with symptoms ranging from fever and cough to body aches, sore throat and congestion.

Changes in the key antigenic regions of H3N2 viruses suggest that the upcoming flu season may require closer attention to ...

Of particular concern, scientists say, is the mismatch of the flu virus and available vaccines. Here's what a UVA Health ...

Health officials are issuing a new warning about a highly contagious stomach virus called norovirus, commonly known as the ...

Health officials are warning people about a flu virus called H3N2 that is spreading in the United States and other countries ...

A dangerous new super flu is spreading fast across the US — and it's not your typical seasonal virus. Hospitalizations are ...

Health leaders are raising concerns about subclade K, a variant of influenza A that has mutated from the original H3N2 strain ...

America could be in for a "severe" influenza season in which flu vaccines offer limited protection, a top UVA Health flu ...

With the holidays and winter break ahead, a deadly strain of influenza is likely to gain traction in the U.S., one health ...

A new influenza variant, called subclade K, has caught the attention of public health officials as cases surge at an alarming ...

A new version of the common flu is spreading globally, and health officials are monitoring this evolving strain of influenza ...

Ahead of the holiday tourist rush, city health officials in New York City reported nearly 14,000 flu cases in the first week ...