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Multistate Outbreak of SARS-CoV-2 Infections, Including Vaccine Breakthrough Infections, Associated with Large Public Gatherings, United States.


ABSTRACT: 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.

SUBMITTER: Gharpure R 

PROVIDER: S-EPMC8714214 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature

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Multistate Outbreak of SARS-CoV-2 Infections, Including Vaccine Breakthrough Infections, Associated with Large Public Gatherings, United States.

Gharpure Radhika R   Sami Samira S   Vostok Johanna J   Johnson Hillary H   Hall Noemi N   Foreman Anne A   Sabo Rebecca T RT   Schubert Petra L PL   Shephard Hanna H   Brown Vance R VR   Brumfield Ben B   Ricaldi Jessica N JN   Conley Andrew B AB   Zielinski Lindsay L   Malec Lenka L   Newman Alexandra P AP   Chang Michelle M   Finn Lauren E LE   Stainken Cameron C   Mangla Anil T AT   Eteme Patrick P   Wieck Morgan M   Green Alison A   Edmundson Alexandra A   Reichbind Diana D   Brown Vernell V   Quiñones Laura L   Longenberger Allison A   Hess Elke E   Gumke Megan M   Manion Alicia A   Thomas Hannah H   Barrios Carla A CA   Koczwara Adrianna A   Williams Thelonious W TW   Pearlowitz Marcia M   Assoumou Moussokoura M   Senisse Pajares Alessandra F AF   Dishman Hope H   Schardin Cody C   Wang Xiong X   Stephens Kendalyn K   Moss Nakema S NS   Singh Gurpalik G   Feaster Christine C   Webb Lindsey Martin LM   Krueger Anna A   Dickerson Kristen K   Dewart Courtney C   Barbeau Bree B   Salmanson Amelia A   Madoff Lawrence C LC   Villanueva Julie M JM   Brown Catherine M CM   Laney A Scott AS  

Emerging infectious diseases 20211118 1


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 r  ...[more]

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