Even if you were previously infected, a COVID-19 booster shot is essential.
By Nina Cosdón. Antibody levels decline in people with hybrid immunity similarly to those who have been vaccinated, meaning everyone needs a booster shot to protect against future potentially serious infections. An additional shot of the Pfizer-BioNTech COVID-19 “booster” is now officially recommended for all Americans […]
Even if you were previously infected, a COVID-19 booster shot is essential. Read More »









