I once wondered if a way to avoid Covid, for healthcare workers and the likes would be to have constant exposure. For example, by working, unprotected and on a

I once wondered if a way to avoid Covid, for healthcare workers and the likes would be to have constant exposure. For example, by working, unprotected and on a day to day basis around covid patients just after recovery from an initial infection (and later, vaccine). The idea is to stimulate the immune system constantly to not let the virus have any chance. While the virus and vaccine are not the same, the fact that the body seems to not have a problem with constant exposure could make it an idea not as dumb as it may seem.