ABC News' Medical Correspondent Dr. Darien Sutton reports on the latest flu activity as the holiday season and gatherings kick into high gear.

Covid vaccinations were related to the deaths of at least 10 children between 2021 and 2024, an official with the Food and ...

During the second week of November, more than 3,000 Texans visited an emergency room for the flu —more than twice the number ...

In the first half of 2025, two HPAI outbreaks linked to the H5N1 virus were recorded in Egypt. According to a six-monthly ...

California could see an early and especially sharp start to the annual flu season, as a combination of low vaccination rates ...

After a quiet summer, bird flu is on the move again, and experts say it poses an escalating threat. While the virus doesn’t appear capable of spreading from human to human, it has killed people ...

The flu has started spreading earlier than usual in some parts of the country, prompting concerns that cases could soon erupt ...

The mutated strain, known as subclade K, is causing a surge in cases in the United Kingdom, Canada, and Japan. Here's what to know.

Health experts warn this flu season could be unusually severe, with early spread and concerning H3N2 strain activity across ...

A mutated strain of the flu is surging worldwide, sparking concerns about a severe flu season in the U.S. Here's what to ...

Note that some links may require registration or subscription. Every single case of systemic lupus erythematosus may be caused by the Epstein-Barr virus, a virus that 95% of people have been exposed ...