Early SARS-CoV-2 Reinfections within 60 Days and Implications for Retesting Policies
Louis Nevejan, Lize Cuypers, Lies Laenen, Liselotte Van Loo, F. Vermeulen, Elke Wollants, Ignace Van Hecke, Stefanie Desmet, Katrien Lagrou, Piet Maes, Emmanuel André
Abstract
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.
Topics & Concepts
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Coronavirus disease 2019 (COVID-19)2019-20 coronavirus outbreakVirologyMedicineInternal medicineDiseaseOutbreakInfectious disease (medical specialty)SARS-CoV-2 and COVID-19 ResearchSARS-CoV-2 detection and testingVaccine Coverage and Hesitancy