Asymptomatically infected patients can still be re-infected with the virus after they have recovered. Asymptomatically infected patients will develop antibodies to Neocollins after they have recovered, which will gradually decrease over time. At the same time, the continuous mutation of Neocollins in the outside world to produce new strains of Neocollins, as well as a weaker immune system during the recovery period may lead to re-infection of the already recovered patients. Therefore, asymptomatic infected patients should be medically monitored after recovery, and regular nucleic acid tests should be performed to check for recurrence of infection, as well as isolation protection to avoid transmission of the virus. It is recommended that asymptomatic infected patients should not only do good protection but also actively carry out rehabilitation training and reasonable nutrition to strengthen their own immunity.