No sign yet of H5N1 bird flu spreading between humans, says WHO chief
The H5N1 avian influenza virus has so far shown no signs of adapting to allow human to human transmission, the UN health agency said on Wednesday, urging continued surveillance.
The H5N1 avian influenza virus has so far shown no signs of adapting to allow human to human transmission, the UN health agency said on Wednesday, urging continued surveillance.