TY - JOUR AU - Gharpure, Radhika AU - Sami, Samira AU - Vostok, Johanna AU - Johnson, Hillary AU - Hall, Noemi AU - Foreman, Anne AU - Sabo, Rebecca AU - Schubert, Petra AU - Shephard, Hanna AU - Brown, Vance AU - Brumfield, Ben AU - Ricaldi, Jessica AU - Conley, Andrew AU - Zielinski, Lindsay AU - Malec, Lenka AU - Newman, Alexandra AU - Chang, Michelle AU - Finn, Lauren AU - Stainken, Cameron AU - Mangla, Anil AU - Eteme, Patrick AU - Wieck, Morgan AU - Green, Alison AU - Edmundson, Alexandra AU - Reichbind, Diana AU - Brown, Vernell AU - Quiñones, Laura AU - Longenberger, Allison AU - Hess, Elke AU - Gumke, Megan AU - Manion, Alicia AU - Thomas, Hannah AU - Barrios, Carla AU - Koczwara, Adrianna AU - Williams, Thelonious AU - Pearlowitz, Marcia AU - Assoumou, Moussokoura AU - Senisse Pajares, Alessandra AU - Dishman, Hope AU - Schardin, Cody AU - Wang, Xiong AU - Stephens, Kendalyn AU - Moss, Nakema AU - Singh, Gurpalik AU - Feaster, Christine AU - Webb, Lindsey Martin AU - Krueger, Anna AU - Dickerson, Kristen AU - Dewart, Courtney AU - Barbeau, Bree AU - Salmanson, Amelia AU - Madoff, Lawrence AU - Villanueva, Julie AU - Brown, Catherine AU - Laney, A. Scott T1 - Multistate Outbreak of SARS-CoV-2 Infections, Including Vaccine Breakthrough Infections, Associated with Large Public Gatherings, United States T2 - Emerging Infectious Disease journal PY - 2022 VL - 28 IS - 1 SP - 35 SN - 1080-6059 AB - During July 2021, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) B.1.617.2 variant infections, including vaccine breakthrough infections, occurred after large public gatherings in Provincetown, Massachusetts, USA, prompting a multistate investigation. Public health departments identified primary and secondary cases by using coronavirus disease surveillance data, case investigations, and contact tracing. A primary case was defined as SARS-CoV-2 detected <14 days after travel to or residence in Provincetown during July 3–17. A secondary case was defined as SARS-CoV-2 detected <14 days after close contact with a person who had a primary case but without travel to or residence in Provincetown during July 3–August 10. We identified 1,098 primary cases and 30 secondary cases associated with 26 primary cases among fully and non–fully vaccinated persons. Large gatherings can have widespread effects on SARS-CoV-2 transmission, and fully vaccinated persons should take precautions, such as masking, to prevent SARS-CoV-2 transmission, particularly during substantial or high transmission. KW - COVID-19 KW - severe acute respiratory syndrome coronavirus 2 KW - SARS-CoV-2 KW - coronaviruses KW - viruses KW - coronavirus disease KW - respiratory infections KW - disease outbreaks KW - multistate outbreak KW - zoonoses KW - breakthrough infections KW - COVID-19 vaccines KW - Massachusetts KW - United States DO - 10.3201/eid2801.212220 UR - https://wwwnc.cdc.gov/eid/article/28/1/21-2220_article ER - End of Reference