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Oxford University Press - PMC COVID-19 Collection logoLink to Oxford University Press - PMC COVID-19 Collection
. 2022 Jun 27:ciac526. doi: 10.1093/cid/ciac526

Effectiveness of COVID-19 mRNA vaccines against infection during an outbreak of SARS-CoV-2 Beta (B.1.351) variant in a skilled nursing facility – Virginia, March-April 2021

Heidi L Moline 1,2,, Amelia Keaton 3, Whitney Rice 4, Jasmine Varghese 5, Li Deng 6, Ansley Waters 7,8, Anna Barringer 9, Devonne Winston 10, Virgie Fields 11, Kara Jacobs Slifka 12, Jennifer R Verani 13, Stephanie J Schrag 14, John Jernigan 15, Jacqueline E Tate 16, Katherine E Fleming-Dutra 17,
PMCID: PMC9278220  PMID: 35758873

Abstract

In April 2021, we assessed mRNA vaccine effectiveness (VE) in the context of a COVID-19 outbreak in a skilled nursing facility. Among 28 cases, genomic sequencing was performed on four specimens on four different patients, and all were classified by sequence analysis as the Beta (B.1.351) variant. Adjusted VE among residents was 65% (95% Confidence Interval: 25-84%). These findings underscore the importance of vaccination for prevention of COVID-19 in skilled nursing facilities.

Keywords: Vaccine Effectiveness, SARS-CoV-2, skilled nursing facility

Contributor Information

Heidi L Moline, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA; Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA.

Amelia Keaton, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA.

Whitney Rice, Virginia Beach Health Department, Virginia Beach, VA.

Jasmine Varghese, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA.

Li Deng, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA.

Ansley Waters, Council of State and Territorial Epidemiologists; Virginia Department of Health, Richmond, VA.

Anna Barringer, Virginia Beach Health Department, Virginia Beach, VA.

Devonne Winston, Virginia Beach Health Department, Virginia Beach, VA.

Virgie Fields, Virginia Department of Health, Richmond, VA.

Kara Jacobs Slifka, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA.

Jennifer R Verani, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA.

Stephanie J Schrag, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA.

John Jernigan, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA.

Jacqueline E Tate, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA.

Katherine E Fleming-Dutra, COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, GA.

Supplementary Material

ciac526_Supplementary_Data

Associated Data

This section collects any data citations, data availability statements, or supplementary materials included in this article.

Supplementary Materials

ciac526_Supplementary_Data

Articles from Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America are provided here courtesy of Oxford University Press

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