![Does the Pfizer Vaccine Stop Transmission?](https://i.ytimg.com/vi/JgrMzvasrm8/sddefault.jpg)
Tags:
pfizer pfizer vaccine transmission stop transmission pfizer coronavirus vaccine omicron covid vaccine moderna biontech omicron vaccine moderna vaccine omicron variant vaccine pfizer pfizer covid 19 vaccine pfizer vaccine covid omicron subvariants biontech vaccine omicron covid pfizer booster pfizer vaccine covid side effects moderna booster pfizer vs moderna pfizer vaccine covid how it works mrna vaccine variant bivalent pfizer covid booster astrazeneca