A study looking at whether veterinarians who work with cows have been unknowingly infected with H5N1 bird flu supports the idea that some human infections are being missed. The study, published Thursday in CDC’s Morbidity and Mortality Weekly Report,

The study published Thursday by the Centers for Disease Control and Prevention echoes two smaller ones that detected evidence of infection in previously undiagnosed farmworkers. In those studies, several of the infected workers remembered having symptoms of H5N1 bird flu, while none of the veterinarians in the new paper recalled any such symptoms.

The Wyoming Department of Health said on Friday it has identified its first human case of H5N1 bird flu in the region, making it the third confirmed instance of hospitalization related to the infection in the United States.

Americans may be walking around with bird flu − and not even know it. President Donald Trump's next round of tariffs are expected to be equivalent to the fees that individual countries put on products imported from the U.

Delays in CDC analyses of infectious disease threats and agency silence will harm Americans, doctors and public health experts warn

Three U.S. dairy veterinarians unknowingly had H5N1 infections, otherwise known as bird flu. This included one person who worked only in states without known outbreaks in cows, according to a new study from the U.