Pfizer COVID-19 vaccine efficacy drops to 84% after 6 months, preprint study suggests

Pfizer COVID-19 vaccine efficacy drops to 84% after 6 months, preprint study suggests



A new study involving the Pfizer-BioNTech COVID-19 vaccine suggests the jab’s efficacy drops to around 84% about six months after the second dose.

via FOX NEWS https://ift.tt/2VbeLGx