“Three doses of a Covid vaccine — or even just two — are enough to protect most people from serious illness and death for a long time” https://t.co/DmOIkodsAk— Amesh Adalja (@AmeshAA) February 22, 2022
“Three doses of a Covid vaccine — or even just two — are enough to protect most people from serious illness and death for a long time” https://t.co/DmOIkodsAk