The specific survival time of neocoronaviruses in plastic bags is usually related to temperature and humidity, and the survival time usually does not exceed 5 days. Neocoronaviruses have a very short survival time in the air. Neocoronaviruses can usually survive for about 5 days in a suitable environment with a temperature of 20°C and a humidity of 40%. It does not survive for long in a closed plastic bag. If the virus is attached to the inside of the bag and the plastic is tightly tied, it may survive for a longer period of time, but usually not more than 5 days. New crown virus is more afraid of high temperature and alcohol, in 56 degrees high temperature, half an hour or so can be inactivated, if the surface of the spray alcohol, the new crown virus will die very quickly. New crown virus is usually not transmitted through plastic bags, mainly through droplets, aerosols, contact and other means of transmission, usually need to wear a good mask when you go out and do a good job of self-protection.