Covid Booster Efficacy Reduces Significantly By 4th Month: US Study
Monday, February 14, 2022
https://ift.tt/hWtUnbj https://ift.tt/XonDdbU February 14, 2022 at 11:22PM https://www.ndtv.comThe efficacy of third doses of the Pfizer and Moderna mRNA vaccines wanes substantially by the fourth month after administration, a new study by the US Centers of Disease Control and Prevention (CDC)...
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