Mississippi state and federal officials have confirmed an outbreak of a strain of bird flu not reported in the U.S. since 2017, with quarantine and depopulation efforts already underway.

When biologists first noticed increased bird flu cases in October, 49 cases had been reported. But because they can only test a limited number of carcasses, the true number is likely higher.

PESCADERO — Every year from late December through March, scientists from the Beltran and Costa labs at UC Santa Cruz set out ...

After a catastrophic outbreak of bird flu devastated southern elephant seal populations in 2023, scientists are on high alert.

Pennsylvania is at the epicenter of a resurgence of highly pathogenic avian influenza with outbreaks reported at numerous egg and poultry farms. Only Iowa, Indiana and Ohio produce more eggs than ...

The confirmation last week of H5N1 bird flu in northern elephant seals at California’s Año Nuevo State Parkhas put wildlife managers and public health officials on alert.

It is the first confirmed outbreak in any elephant seal population in California. As a result of the outbreak, the elephant seal viewing area at Ano Nuevo State Park has been closed and tours have ...