Health
Pfizer, Moderna vaccines cut infection risk by 91%: US CDC – National Herald
Taking two doses of the Pfizer-BioNTech and Moderna’s mRNA-based vaccines, authorised by FDA, can reduce the risk of coronavirus…
While these indicators are not a direct measure of a person’s ability to spread the virus, they have been correlated with reduced spread of other viruses, such as varicella and influenza, the CDC said.
For the study, 3,975 participants completed weekly…
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