Recurrence or Relapse of COVID-19 in Older Patients: A Description of Three Cases.

BACKGROUND: The coronavirus disease 2019 (COVID-19) has infected millions of people worldwide, particularly in older adults. The first cases of possible re-infection by SARS-CoV-2 were reported in April 2020 among older adults. DESIGN/SETTING: In this brief report, we present three geriatric cases with two episodes of SARS-CoV-2 infection separated by a symptom-free interval.