New CDC research suggests that a small but significant percentage of dairy farmers working near infected cows have recently contracted H5N1, often without knowing.

Federal health officials on Thursday called for more testing of employees on farms with bird flu after a new study showed that some dairy workers had signs of infection, even when they didn’t report feeling sick. Farmworkers in close contact with ...

The state’s veterinarian said she’s “knocking on wood as we celebrate,” and that Colorado's dairy industry isn't out of the woods yet.