5 ms·Protection of BNT162b2 (Pfizer) Vaccine Booster Against Covid-19 in Israel3 points by lukecameron 5y agokaminar 5y agoSo 3 boosters kill less than 2? Openvaers.comnradov 5y agoWe always expected that vaccination would be less effective for older patients. There are experiments underway now to see if that can be improved with rapalogs.