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.

Health officials say a hospitalized patient in Missouri was infected with bird flu, despite having no known contact with dairy cows or other animals.

The National Animal Disease Center in Ames, Iowa, is the place where scientists are pushing to solve the bird flu outbreak currently spreading through U.S. animals — and develop ways to stop it

Egg prices jumped more than 19% in July compared with the same month a year ago, consumer price index data shows.

Four poultry workers in Colorado have been diagnosed with bird flu, bringing the U.S. total to nine since the first human case of the current outbreak was detected in 2022.

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

Australia is facing an egg supply crunch thanks to bird flu outbreaks — and it’s led McDonald’s to trim breakfast hours by 90 minutes.

Moderna already has a bird flu vaccine in very early-stage testing that uses the same mRNA technology that allowed rapid development and rollout of vaccines to protect against COVID-19.

What are the key differences from the H5N2 bird flu virus that killed a man in Mexico and the H5N1 found in the U.S.? Here’s what experts say.

Health authorities say a man in Mexico died from a type of bird flu called H5N2 that has never before been found in a human.