Risk of COVID-19 reinfection less than 1%, study finds By (0) COVID-19 reinfection is rare within months of initial infection, according to a new study, though researchers note that after natural immunity wanes it may be possible to reaquire the virus. Photo by Abhishek/UPI | License Photo COVID-19 reinfection is rare within months of initial infection, according to a new study, though researchers note that after natural immunity wanes it may be possible to reaquire the virus. File Photo by John Angelillo/UPI | License Photo COVID-19 reinfection is rare within months of initial infection, according to a new study, with researchers saying that vaccination after recovery can further prevent reinfection. File Photo by Gary I Rothstein /UPI | License Photo