People who have been infected with Neocollins may be re-infected in the future. Therefore, it is recommended that they try to take good personal precautions to cut off the means of transmission and prevent re-infection. People who have been infected with the virus but have recovered from the disease will maintain a high titer of antibodies to the virus for a short period of time after recovery, so the chances of being re-infected with the virus in the short term are not high, but there are individual differences. However, antibodies to the new coronavirus are not present in the body for life and vary according to the individual’s physical condition. Usually, the antibodies will gradually decrease and disappear as time passes after the infection is cured. Therefore, after a relatively long period of time, when the antibody level in the body is not able to effectively defend against the invasion of the new coronavirus, the body may be re-infected.