In April, three cats were found dead on a Texas dairy farm after drinking unpasteurized milk from infected cows. In 2016, a cat spread the virus to a person in New York City, according to the CDC .

Barcellos, who farms in Porterville, has 1,600 cows on his dairy and has only had to deal with a small number of infections, crediting his strict bio safety standards for the low numbers.

DES MOINES — For nearly six decades, Lee Barber brought prize Brown Swiss dairy cows to the Iowa State Fair. Not this year. The reason: the bird flu outbreak racing through dairy herds across ...