Express parcels may transmit disease and viruses. After the virus leaves the body, although it can not survive for a long time, but there is a short survival time, so there is a risk of infection. If a virus carrier or infected person has contacted the courier package, the virus can contaminate the outer packaging of the courier and spread with logistics and transportation. The virus that contaminates the express parcel can originate from respiratory tract-transmitted viruses and also from digestive tract-transmitted viruses.1. Respiratory tract-transmitted viruses: infected people speak loudly or cough, respiratory droplets can splash onto the express parcel. In addition, it can also contaminate the courier package through the hands carrying the virus. For example, the new coronavirus can survive for 2 days on the surface of clothing, 24h on cardboard, and even longer below 0 ℃. Logistics and transportation process, people who have touched the courier parcel, there is a risk of infection; 2, digestive tract transmitted viruses: such as norovirus, hepatitis A virus, hepatitis E virus infection, if you do not pay attention to hand washing after the stool, after contacting the courier parcel, can cause contamination of the courier parcel. People who have contacted the express parcel, if they also do not pay attention to hand washing, there will be a risk of infection. During the logistics and transportation process, people who come into contact with express parcels should pay attention to hand hygiene, wash their hands and disinfect them regularly. Those who receive express parcels are advised to disinfect with chlorine-containing disinfectant or alcohol before opening, wash their hands immediately after opening the express parcel, and discard the express package in a timely manner.