Cow challenge study should help turn tables on H5N1 in dairy herds

Animal challenge studies completed by U.S. Department of Agriculture (USDA) scientists show that infecting dairy cows with the H5N1 virus in a laboratory setting can trigger clinical signs of disease similar to those of naturally ...

New study confirms mammal-to-mammal avian flu spread

A new study provides evidence that a spillover of avian influenza from birds to dairy cattle across several U.S. states has now led to mammal-to-mammal transmission—between cows and from cows to cats and a raccoon.

Is bird flu in cattle here to stay?

Despite assurances from the federal government that bird flu will be eradicated from the nation's dairy cows, some experts worry the disease is here to stay.

Are pet dogs and cats the weak link in bird flu surveillance?

When researchers talk about their biggest bird flu fears, one that typically comes up involves an animal—like a pig—becoming simultaneously infected with an avian and a human flu. This creature, now a viral mixing vessel, ...

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