Neocoronavirus does not recur after treatment, but it can still be nucleic acid positive and there is still a possibility of re-infection after neocoronavirus treatment. After a person has been infected with the new coronavirus and has recovered from treatment, antibodies against the new coronavirus are already present in the body, and there is no latent virus in the body, so there is no chance of relapse. However, after recovery, the nucleic acid test may still be positive due to intermittent excretion of nucleic acid fragments of the virus, which are usually not infectious. After discharge from the hospital, cured New Crown infected patients should rest and take active nutritional supplements. As the antibodies in the body will gradually decline over time and there is still a possibility of re-infection with Neocollins in the future, it is still necessary to wear a good mask when going out for personal protection.