Pfizer announced Monday that its COVID-19 vaccine candidate has been 90% effective.
Story: https://wfts.tv/2IabEss
Pfizer announced Monday that its COVID-19 vaccine candidate has been 90% effective.
Story: https://wfts.tv/2IabEss
The news about two covid-19 vaccines has been absolutely remarkable
LONDON — The University of Oxford and AstraZeneca's coronavirus vaccine was 90 percent effective in preventing COVID-19 In..