MMWR Early Release: Morbidity and Mortality Weekly Report, July 15, 2022: Effectiveness of 2, 3, and 4 COVID-19 mRNA Vaccine Doses Among Immunocompetent Adults During Periods When SARS-CoV-2 Omicron BA.1 and BA.2/BA.2.12.1 Sublineages Predominated -- VISION Network, 10 States, December 2021-June 2022   [open pdf - 712KB]

The Morbidity and Mortality Weekly Report (MMWR) Series is prepared by the Centers for Disease Control and Prevention (CDC). [It] is the agency's primary vehicle for scientific publication of timely, reliable, authoritative, accurate, objective, and useful public health information and recommendations. This Early Release issue of MMWR contains the following article: "Effectiveness of 2, 3, and 4 COVID-19 [coronavirus disease 2019] mRNA [messenger ribonucleic acid] Vaccine Doses Among Immunocompetent Adults During Periods When SARS-CoV-2 [severe acute respiratory syndrome coronavirus 2] Omicron BA.1 and BA.2/BA.2.12.1 Sublineages Predominated -- VISION Network, 10 States, December 2021-June 2022." Notifiable Diseases and Mortality Tables from MMWR can be accessed at the following link [http://www.cdc.gov/mmwr/index2022.html].