The Perfect Enemy | Year: 2022 | Page 1332
September 15, 2025

Year: 2022

Effectiveness of a COVID-19 Additional Primary or Booster Vaccine Dose in Preventing SARS-CoV-2 Infection Among Nursing Home Residents During Widespread Circulation of the Omicron Variant — United States, February 14–March 27, 2022 | MMWR – cdc.gov