New pneumonia can be transmitted by contact. When a person diagnosed with coronavirus pneumonia speaks, coughs, or sneezes, a large number of droplets are emitted from the mouth, which contain a very large amount of coronavirus, and these droplets are deposited on the surface of objects, such as elevator buttons, door handles, and tables. When a healthy person touches the surface of these objects or objects with his hands, if he then touches the mucous membranes of the mouth, nose, eyes, etc., the virus can invade the person’s body, thus causing infection. Therefore, if you want to prevent the infection of novel coronavirus pneumonia, you must wash your hands frequently, especially after touching the relevant objects in public places, you must use hand sanitizer to wash under running water.