Pfizer COVID-19 vaccine just 42% effective against infection amid delta spread, preprint suggests
https://healthell.blogspot.com/2021/08/pfizer-covid-19-vaccine-just-42.html
Pfizer COVID-19 vaccine just 42% effective against infection amid delta spread, preprint suggests
Early findings posted ahead of rigorous peer review suggested the Pfizer COVID-19 vaccine declined to 42% effectiveness against infection amid sweeping spread of the delta variant, with the Moderna vaccine declining to 76%.
