It is well known that the transmission route of the new coronavirus is respiratory droplets and close contact, so in addition to reducing going out and wearing a mask, it is also important to pay attention to contact transmission. Hands and cell phones are two areas that need to be paid attention to. Although NCCV cannot enter the human body through the skin, hands are often exposed to outside objects, such as doorknobs, which have a high chance of being contaminated with NCCV and are very easy to cross-infection. If you rub your eyes with virus-contaminated hands, you will get infected, so the right way is to wash your hands and disinfect them regularly. In addition, cell phones are electrical appliances that are frequently touched by hands, so they also need to be disinfected after returning home.