The expanded protocols come after a child in California tested positive for the bird flu despite no known contact with animals. The Centers for Disease Control issued a health alert calling for the ...

The strain of bird flu that infected a Michigan dairy worker in May 2024 is capable of airborne transmission, according to new research from the CDC.

Many humans may already have some immunity to H5N1 bird flu, raising hopes that the virus could pose less of a threat than ...

Federal health officials on Thursday called for more testing of employees on farms with bird flu after a new study showed that some dairy workers had signs of infection, even when they didn't report ...

Health officials on Thursday said they don’t know how a Missouri person caught bird flu but believe it may be a rare instance of a “one-off" standalone illness. Investigators trying to determine how ...

H5N1 bird flu has expanded to livestock herds in three new US states this week, broadening an outbreak that scientists say is ...

A human case of H5N1, also known as bird flu, has been identified in Texas, according to the Centers for Disease Control and Prevention. The federal agency notes the risk to the public remains low.

Disease experts say vaccinating cattle could be the most important step to stop H5N1's advance across US farms.

A fourth farm worker has been infected with bird flu in the growing outbreak linked to dairy cows, health officials reported Wednesday. The worker had direct contact with infected dairy cows on a ...

Eleven more marine mammals have been tested and confirmed to have H5N1 avian flu in an outbreak that spans four counties in ...