SARS-CoV-2 superinfection and reinfection with three different strains.
Laura Pérez-Lago, Martha Kestler, Pedro J Sola-Campoy, Cristina Rodriguez-Grande, Rubén Francisco Flores-García, Sergio Buenestado-Serrano, Marta Herranz, Luis Alcalá, Carolina Martínez-Laperche, Julia Suárez-González, Pilar Catalán, Patricia Muñoz, Darío García de Viedma
We report a corona virus disease (COVID-19) case with unprecedented viral complexity. In the first severe episode, two different severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) strains (superinfection) were identified within a week. Three months after discharge, the patient was readmitted and was infected in a nosocomial outbreak with a different strain, suffering a second milder COVID-19 episode.