Secret Weapon: Why the 2nd Dose of Pfizer Vaccine Is So Crucial
WEDNESDAY, July 21, 2021 (HealthDay News) — It takes two doses of the Pfizer-BioNTech COVID-19 vaccine to “wake up” cells that play a very important role in the body’s immune response, with the second dose increasing their numbers 100-fold, according to new research. The Stanford University study may help explainContinue Reading










