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

Moderna Inc. said Monday its experimental flu shot showed positive results in a late-stage trial.   In a Phase 3 study, the ...

Seasonal flu cases have hit a 15-year high this year—filling hospitals, shutting down schools, and leading to an estimated 19,000 flu-related deaths so far in the United States. These deaths ...

In late 2023, bird flu arrived on the rocky shores of the Valdés Peninsula in Argentina, ripping through the local colony of southern elephant seals. More than 17,000 seal pups died.

Large-scale immunity profiling grants insights into flu virus evolution Researchers have used high-throughput neutralization assays to reveal how gaps in individual immunity shape the success of ...