Doctors say COVID-19 reinfection is possible because, although you may build up immunity after the first infection, there is no guarantee that immunity to the virus is permanent. cautionCoronavirusCOVID-19COVID-19 immunityCOVID19doctorsDoctors caution that COVID-19 reinfection is possibleimmune systemIMMUNITYReinfectionvideoVITAMINvlogYouTube
