Will COVID-19 receive the courier for the second time?

The possibility of a second Yang is very low. Novel coronavirus is usually caused by virus infection, which is highly contagious. After the patient is cured, it is not well protected, and the antibody in the body disappears, which will lead to the second positive. Secondly, the sending and receiving of express delivery will be disinfected to a certain extent. COVID-19 on the express delivery has a short survival time, so it needs disinfection to get the express delivery, so as to protect himself and prevent recurrence.