The new coronavirus pneumonia is characterized by a relatively long incubation period and relatively mild symptoms. This situation implies a high degree of contagiousness. If the patient is particularly severe, with respiratory distress and fever, the people around him will be very vigilant, and the chances of being infected are not high. However, in very mild cases, or even incubating patients without any symptoms, it is possible to have close contact with them, making them highly contagious. New coronavirus pneumonia is a contagious disease, the so-called infectious disease is characterized by contagion, its pathogenicity, lethality is not strong, but relatively strong contagious. And it is because the symptoms are light, it is possible to be highly contagious, in order to avoid this situation, it is proposed not to go to crowded places, in the confined space to wear a mask, to wash hands, so as to cut off the source of infection. Because during the incubation period, many people do not have symptoms. Source: Dr. Yurai