Protection against Covid-19 by BNT162b2 Booster across Age Groups | NEJM
▻https://www.nejm.org/doi/full/10.1056/NEJMoa2115926
CONCLUSIONS
Across the age groups studied, rates of confirmed #Covid-19 and severe illness were substantially lower among participants who received a booster dose of the BNT162b2 vaccine than among those who did not.