Avian influenza has been prevalent in wild animals for years, but it is now adapting to humans.
Vuk Valcic//SOPA Images/LightRocket, Getty Images
The threat of the deadly H5N1 avian influenza virus adapting to humans has been closer to reality all year, and we may be nearing a tipping point. The three human H5N1 cases occurred in the very scenario that public health officials fear could lead to a human pandemic.
“Although there is still no clear evidence of human-to-human transmission, I…
