The H5N1 bird flu outbreak in the U.S. has so far been shockingly mild. Researchers have some theories as to why.

SYDNEY (Reuters) - Highly pathogenic avian influenza has been detected at a poultry farm in New Zealand's South Island, authorities said on Monday, the first time the island nation has reported a ...

Understaffing, workers say, has increased the potential for delays or mistakes, with potential consequences for the state's ...