New coronavirus generally refers to the new coronavirus, which commonly survives on copper, cardboard, stainless steel, plastic, etc. The survival time varies, which may be a few hours or a few days, as follows. The survival time of the new coronavirus on surfaces varies depending on the material. For example, the new coronavirus can only survive for about 4 hours on copper surfaces, 24 hours on cardboard, 2 days on stainless steel, and up to 3 days on plastic surfaces. However, the actual infectious size of the new crown virus also depends on the concentration of the virus, but also depends on temperature, humidity, ultraviolet light and other related factors, and can not be generalized. Therefore, daily cleaning and disinfection of frequently touched places such as door handles, taps and shopping carts in supermarkets, as well as washing hands frequently and keeping a distance from others when going out, can be effective preventions.