Why would you think that people couldn't get reinfected ? The virus won't just bounce off your skin after one has got into you. If it is present everywhere in

Why would you think that people couldn't get reinfected ? The virus won't just bounce off your skin after one has got into you. If it is present everywhere in the environment then you will keep getting infected, maybe faster than your immune system can deal with it. The end point to aim for in terms of immunity is that your immune system can deal with any level of viral load in the future without you becoming ill. Maybe combined with prophylactic drugs that help prevent the virus reproducing as fast within you.