Pfizer says immunity drops to 83% within four months in people who got its COVID-19 shot, further bolstering the company case for a booster msn.com/en-us/money/markets/…
Pfizer says immunity can drop to 83% within four months in people who got its COVID-19 shot,...
The effectiveness of Pfizer’s COVID-19 shot can drop to 83.7% within four to six months after getting the second dose of its vaccine. This is the latest indication that vaccine-induced immunity to...msn.com
8:05 PM · Jul 29, 2021