Vaccines (Nov 2022)

Breakthrough SARS-CoV-2 Infections after Vaccination in North Carolina

  • Diane Uschner,
  • Matthew Bott,
  • William H. Lagarde,
  • Joseph Keating,
  • Hazel Tapp,
  • Andrea A. Berry,
  • Austin L. Seals,
  • Iqra Munawar,
  • John Schieffelin,
  • Joshua Yukich,
  • Michele Santacatterina,
  • Mihili Gunaratne,
  • Lida M. Fette,
  • Brian Burke,
  • Greg Strylewicz,
  • Sharon L. Edelstein,
  • Amina Ahmed,
  • Kristen Miller,
  • John W. Sanders,
  • David Herrington,
  • William S. Weintraub,
  • Michael S. Runyon,
  • on behalf of the COVID-19 Community Research Partnership

DOI
https://doi.org/10.3390/vaccines10111922
Journal volume & issue
Vol. 10, no. 11
p. 1922

Abstract

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We characterize the overall incidence and risk factors for breakthrough infection among fully vaccinated participants in the North Carolina COVID-19 Community Research Partnership cohort. Among 15,808 eligible participants, 638 reported a positive SARS-CoV-2 test after vaccination. Factors associated with a lower risk of breakthrough in the time-to-event analysis included older age, prior SARS-CovV-2 infection, higher rates of face mask use, and receipt of a booster vaccination. Higher rates of breakthrough were reported by participants vaccinated with BNT162b2 or Ad26.COV2.S compared to mRNA-1273, in suburban or rural counties compared to urban counties, and during circulation of the Delta and Omicron variants.

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