The avian H5N1 influenza virus outbreak in Hong Kong in 1997 proved to be highly virulent when first transmitted to humans, but the reasons for this virulence have remained unclear. In August 26
Seo
The avian H5N1 influenza virus outbreak in Hong Kong in 1997 proved to be highly virulent when first transmitted to humans, but the reasons for this virulence have remained unclear. In August 26
Seo