Bird Flu

The H5N1 avian flu is circulating in cows and other mammals. Whether it will make a permanent leap to humans is another question

This San Antonio, Tex., lab takes biosecurity seriously. Suit up with its scientists and go behind the scenes of the science of vaccine creation.

The bird flu was long known to poultry farmers. Here’s why the dairy industry was caught off guard by its jump to cattle.

The first hints that a new strain of avian illness is emerging could be found on this beach on Delaware Bay, where migrating birds flock. Here’s what virus detectives who return there every year know right now.

Researchers have tested an mRNA vaccine against avian influenza in calves with promising results

As the bird flu outbreak continues, public health outreach to farm workers is meeting fear and resistance amid Trump’s attacks on immigrants

The detection of bird flu in a sheep is another sign that the H5N1 virus is adapting to hop to new hosts

Secretary of Health and Human Services Robert F. Kennedy, Jr., has repeatedly suggested that farmers should let bird flu spread through flocks. Experts explain why that’s a dangerous idea

As bird flu outbreaks continue to affect animals, experts answer questions about keeping pets and their owners healthy

COVID and the 1918 flu pandemic gave us playbooks on how to prepare for the next pandemic. But we aren’t using it.

No new human cases of avian influenza have been reported, and poultry infections are low so far in March. But infections in cats are continuing, and new research is raising concerns about the virus

The CDC has sequenced bird flu viruses from people in Nevada and Wyoming, and the Trump Administration has released a strategy for reducing egg prices