Fewer than 4% of adults in Wuhan China tested positive for antibodies against COVID-19 putting the possibility of countries developing "herd immunity" against the virus without a vaccine in doubt.
Upvoted: Fewer than 4% of adults in Wuhan, China, tested positive for antibodies against COVID-19, putting the possibility of countries developing "herd immunity" against the virus without a vaccine in doubt. via /r/worldnews https://ift.tt/2TlVTAw