Multistate Outbreak of SARS-CoV-2 Infections, Including Vaccine Breakthrough Infections, Associated with Large Public Gatherings, United States
Radhika Gharpure
1, Samira Sami
1, Johanna Vostok, Hillary Johnson, Noemi Hall, Anne Foreman, Rebecca T. Sabo, Petra L. Schubert, Hanna Shephard, Vance R. Brown, Ben Brumfield, Jessica N. Ricaldi, Andrew B. Conley, Lindsay Zielinski, Lenka Malec, Alexandra P. Newman, Michelle Chang, Lauren E. Finn, Cameron Stainken, Anil T. Mangla, Patrick Eteme, Morgan Wieck, Alison Green, Alexandra Edmundson, Diana Reichbind, Vernell Brown, Laura Quiñones, Allison Longenberger, Elke Hess, Megan Gumke, Alicia Manion, Hannah Thomas, Carla A. Barrios, Adrianna Koczwara, Thelonious W. Williams, Marcia Pearlowitz, Moussokoura Assoumou, Alessandra F. Senisse Pajares, Hope Dishman, Cody Schardin, Xiong Wang, Kendalyn Stephens, Nakema S. Moss, Gurpalik Singh, Christine Feaster, Lindsey Martin Webb, Anna Krueger, Kristen Dickerson, Courtney Dewart, Bree Barbeau, Amelia Salmanson, Lawrence C. Madoff, Julie M. Villanueva, Catherine M. Brown
2, and A. Scott Laney
2
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (R. Gharpure, S. Sami, N. Hall, A. Foreman, R.T. Sabo, V.R. Brown, B. Brumfield, J.N. Ricaldi, C. Dewart, J.M. Villanueva, A.S. Laney); Massachusetts Department of Public Health, Boston, Massachusetts, USA (J. Vostok, H. Johnson, P.L. Schubert, H. Shephard, L.C. Madoff, C.M. Brown); Council of State and Territorial Epidemiologists Applied Epidemiology Fellowship, Atlanta (H. Shephard, A. Edmundson); Georgia Institute of Technology, Atlanta (A.B. Conley); New York City Department of Health and Mental Hygiene, New York, New York, USA (L. Zielinski, L. Malec); New York State Department of Health, Albany, New York, USA (A.P. Newman); Los Angeles County Department of Public Health, Los Angeles, California, USA (M. Chang, L.E. Finn); California Department of Public Health, Richmond, California, USA (C. Stainken); DC Health, Washington, DC, USA (A.T. Mangla, P. Eteme); Rhode Island Department of Health, Providence, Rhode Island, USA (M. Wieck, A. Green); Connecticut Department of Public Health, Hartford, Connecticut, USA (A. Edmundson, D. Reichbind); CDC Foundation, Atlanta (D. Reichbind, C.A. Barrios, T.W. Williams); Philadelphia Department of Public Health, Philadelphia, Pennsylvania, USA (V. Brown Jr., L. Quiñones); Pennsylvania Department of Health, Harrisburg, Pennsylvania, USA (A. Longenberger, E. Hess); Florida Department of Health, Tallahassee, Florida, USA (M. Gumke); New Hampshire Department of Health and Human Services, Concord, New Hampshire, USA (A. Manion, H. Thomas); Chicago Department of Public Health, Chicago, Illinois, USA (C.A. Barrios, A. Koczwara); Maryland Department of Health, Baltimore, Maryland, USA (T.W. Williams, M. Pearlowitz); Alexandria Health Department, Alexandria, Virginia, USA (M. Assoumou); Virginia Department of Health, Richmond, Virginia, USA (A.F. Senisse Pajares); Georgia Department of Public Health, Atlanta (H. Dishman); Minnesota Department of Health, St. Paul, Minnesota, USA (C. Schardin, X. Wang); North Carolina Department of Health and Human Services, Raleigh, North Carolina, USA (K. Stephens); Alabama Department of Public Health, Montgomery, Alabama, USA (N.S. Moss); Indiana Department of Health, Indianapolis, Indiana, USA (G. Singh, C. Feaster); Colorado Department of Public Health and Environment, Denver, Colorado, USA (L.M. Webb); Maine Center for Disease Control and Prevention, Augusta, Maine, USA (A. Krueger); Ohio Department of Health, Columbus, Ohio, USA (K. Dickerson, C. Dewart); Utah Department of Health, Salt Lake City, Utah, USA (B. Barbeau, A. Salmanson)
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Figure 1
![Primary cluster-associated cases of severe acute respiratory syndrome coronavirus 2 infection (n = 1,098), by vaccination status and date of specimen collection, after large public gatherings in Provincetown, Massachusetts, USA, July 2021. Fully vaccinated persons were those who were >14 days after completion of all recommended doses of a US Food and Drug Administration‒authorized coronavirus disease vaccine (2 doses of Pfizer/BioNTech [https://www.pfizer.com] or Moderna [https://www.modernatx.com], or 1 dose of Johnson & Johnson [https://www.jandj.com]), with documentation in their state immunization information system or self-report of vaccination details during case investigation. Non–fully vaccinated includes persons who were partially vaccinated or unvaccinated or whose vaccination status was unknown.](/eid/images/21-2220-F1.jpg)
Figure 1. Primary cluster-associated cases of severe acute respiratory syndrome coronavirus 2 infection (n = 1,098), by vaccination status and date of specimen collection, after large public gatherings in Provincetown, Massachusetts, USA, July 2021. Fully vaccinated persons were those who were >14 days after completion of all recommended doses of a US Food and Drug Administration‒authorized coronavirus disease vaccine (2 doses of Pfizer/BioNTech [https://www.pfizer.com] or Moderna [https://www.modernatx.com], or 1 dose of Johnson & Johnson [https://www.jandj.com]), with documentation in their state immunization information system or self-report of vaccination details during case investigation. Non–fully vaccinated includes persons who were partially vaccinated or unvaccinated or whose vaccination status was unknown.
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