ÎçÒ¹¸£Àû1000¼¯ºÏBird flu may be adapting to become more infectious to humans Three people in North America without known animal exposures have tested positive for the bird flu virus H5N1, and samples from two of them suggest the virus is adapting to humans News
ÎçÒ¹¸£Àû1000¼¯ºÏRisk of bird flu outbreak in cows causing pandemic is less than feared Cow udders have lots of bird-like flu virus receptors but no human-like ones, a study has found, meaning there’s no reason for the virus to evolve to become better at infecting people News