Bird flu continues to spread quickly through the U.S. farm system because that system is inherently a viral playground.

Health care systems send in a quantity of flu samples to public health labs for additional testing to help detect any new bird flu cases, which is how a case in Missouri was initially identified.

A long-lasting formulation of an antiviral drug greatly reduced people’s risk of a symptomatic flu infection in a trial, and ...

Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems might be primed to fend off a worse case, research finds.

New research uses bird droppings to track avian flu in remote regions, revealing hidden hotspots and potential for early ...

Moderna's new flu vaccine, based on the same mRNA technology used in its COVID-19 shot, showed promising results in a major ...

When the seasonal flu strikes, most people expect the familiar lineup of fever, aches and congestion. But for many patients, dizziness emerges as an ...

The Trump administration’s vaccine advisers are bringing up an old flu-shot debate: whether it’s time to wipe out the last ...

Monitoring fungal spores in the outdoor air can predict surges in flu and COVID-19 infections, especially during the fall, according to a new study.

‌Some older adults may have weaker immune systems, which can put them at a higher risk of developing severe complications from flu. The risk is related to changes in immune defenses that happen ...

MORE: Bird flu cases rise to 31 in US, still no evidence of person-to-person spread: CDC. Yang said he doesn't see bird flu putting a major strain on the health system right now, but there are ...