New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

Mosquitoes collected from a Panhandle mosquito trap site in Scotts Bluff County recently tested positive for West Nile virus. A positive test is an indicator that West Nile is circulating ...

When hunter-gatherers began living close to animals, the pathogens that cause the plague and leprosy got closer too.