While some lucky people claim to have never had COVID, many are facing their second, third or even fourth infection, often despite having been vaccinated. So, how long does immunity last after a previous infection or vaccination? ⌘ Read more
While some lucky people claim to have never had COVID, many are facing their second, third or even fourth infection, often despite having been vaccinated. So, how long does immunity last after a previous infection or vaccination? ⌘ Read more