Now that bird flu is spreading among cows, scientists worry where H5N1 will jump next

Bird flu outbreaks among U.S. cattle are a new twist in a growing global crisis. And it could be a harbinger of more species-jumps to come, including the rising possibility of H5N1 appearing in livestock like pigs — which scientists warn could help this virus better adapt to humans, too.

Now that bird flu is spreading among cows, scientists worry where H5N1 will jump next
A meadow with cows taken from the air with a drone.

Bird flu outbreaks among U.S. cattle are a new twist in a growing global crisis. And it could be a harbinger of more species-jumps to come, including the rising possibility of H5N1 appearing in livestock like pigs — which scientists warn could help this virus better adapt to humans, too.