The new coronavirus is mainly transmitted through droplet transmission and contact. If the new coronavirus is stuck on cell phones, elevator buttons and cash, people may get infected if they rub their eyes, pick their nose or touch their lips with their virus-contaminated hands after contact. Therefore, you should wash your hands carefully after touching your cell phone and cash, and do not touch your mouth, nose, eyes and other parts with your hands. Also frequently disinfect the phone, wipe the surface of the phone with a cotton ball or a clean paper towel dipped in 75% alcohol. When you go out, try to touch as few public objects as possible, press the elevator with a tissue pad, and wash your hands in time after going home, so you can play a protective role.