Emerging Infectious Diseases (Aug 2022)

Early SARS-CoV-2 Reinfections within 60 Days and Implications for Retesting Policies

  • Louis Nevejan,
  • Lize Cuypers,
  • Lies Laenen,
  • Liselotte Van Loo,
  • François Vermeulen,
  • Elke Wollants,
  • Ignace Van Hecke,
  • Stefanie Desmet,
  • Katrien Lagrou,
  • Piet Maes,
  • Emmanuel André

DOI
https://doi.org/10.3201/eid2808.220617
Journal volume & issue
Vol. 28, no. 8
pp. 1729 – 1731

Abstract

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Illustrated by a clinical case supplemented by epidemiologic data, early reinfections with SARS-CoV-2 Omicron BA.1 after infection with Delta variant, and reinfection with Omicron BA.2 after Omicron BA.1 infection, can occur within 60 days, especially in young, unvaccinated persons. The case definition of reinfection, which influences retesting policies, should be reconsidered.

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