MONDAY, Feb. 14, 2022 (HealthDay News) COVID-19 vaccine effectiveness (VE) is increased after three doses but wanes with time since vaccination after receipt of two or three doses, according
MONDAY, Feb. 14, 2022 (HealthDay News) COVID-19 vaccine effectiveness (VE) is increased after three doses but wanes with time since vaccination after receipt of two or three doses, according
MONDAY, Feb. 14, 2022 (HealthDay News) COVID-19 vaccine effectiveness (VE) is increased after three doses but wanes with time since vaccination after receipt of two or three doses, according
The effectiveness of a COVID-19 booster shot waned over time, but the extra dose continued to protect against hospitalization at 4 months and beyond, according to data collected during the omicron surge and reported Friday in MMWR.
The study showed that a booster dose of messenger RNA vaccine was more than 90% effective at preventing hospitalization during the first 2 months, dropping below 80%