Bird flu fears have focused on the poultry and dairy industries and human health. But wild animals are threatened, too—at ...

The virus, which scientists call H5N1, has spread like wildfire around the globe in recent years, surprising and horrifying ...

New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

Accusing California of imposing “unnecessary red tape” on the production of eggs, the Trump administration is suing the state ...

The Trump administration is suing the state of California to block animal welfare laws that it says unconstitutionally helped ...

From the outset of the Trump administration, bird flu, or H5N1 avian influenza, has flown rather conspicuously — and in fact ...

Now the Trump administration appears to be alleging that voters were somehow hoodwinked into supporting the measure by ...

U.S. Secretary of Agriculture says California’s actions under Proposition 12 fly in the face of Federal jurisdiction and ...

The Justice Department is suing California, saying its mandate for roomy poultry housing conflicts with federal law.

California hasn't seen a recurrence of widespread bird flu at poultry and egg ranches in the state since early this year.

Bird flu was nearly everywhere in the U.S.—in chickens, cows, pet cats and even humans. Cases have gone down, but experts ...

For months, bird flu was seemingly everywhere in the U.S.: news headlines reported the highly pathogenic H5N1 avian influenza ...