The outbreak of the bird flu virus in dairy cows across the United States was first officially reported toward the end of March. But scientists say the virus was actually spreading undetected as early ...

Avian flu is spreading rapidly among cattle, but public health and infectious disease experts are concerned the United States is too limited in its testing, leaving an incomplete picture of the ...

Dairy farms facing an outbreak will have economic losses from caring for sick animals and the temporary reduction in milk sales. The Food and Drug Administration, which announced the early results ...