Covid Booster

Pfizer's COVID-19 booster shot is safe, 95.6 percent effective against virus in patients 16 years and older

Several countries have already approved Covid-19 booster shots to increase immunity in people who have already been vaccinated, but whose protection may have dipped after several months, per some studies.

COVID-19 Fact Check: COVID-19 booster shots not as important as getting everyone vaccinated first

Francis Collins said, “Nobody is saying you need a booster today. But boosters might very well be in our future at some point."