Suspected Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2) Reinfections: Incidence, Predictors, and Healthcare Use Among Patients at 238 US Healthcare Facilities, 1 June 2020 to 28 February 2021.

In contrast to a population surveillance study in Denmark [ 4 ], age ≥65 years was not identified as a significant risk factor for reinfection in our relatively larger study, although a nonsignificant trend of increased risk with older age was observed on longer follow-up.

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