Administration of two doses of the Pfizer-BioNTech and Moderna mRNA-based COVID-19 vaccines can diminish the risk of COVID infection by 91%, suggests a new study by the US Centers for Disease Control and Prevention (CDC).

It was reported that even a single dose of the mRNA vaccines can decrease the risk of infection by 81%. The estimates include both symptomatic and asymptomatic infections. Additionally, the study suggested that mRNA vaccination is beneficial for individuals who get COVID-19 even after being fully vaccinated (14 or more days after second dose) or partially vaccinated (14 or more days following first dose to 13 days following second dose)… (ET Healthworld – IANS, June 8, 2021)