Threat Assessment Brief: Reinfection with SARS-CoV-2: considerations for public health response

Abstract

Cases with suspected or possible reinfection with SARS-CoV-2 have been recently reported in different countries. In many of these cases, it is uncertain if the individual’s Polymerase Chain Reaction (PCR) test remained positive for a long period of time following the first episode of infection or whether it represents a true reinfection.