Asymptomatic New Coronavirus pneumonia is a series of clinical symptoms such as fever, cough, malaise, and no obvious imaging features of New Coronavirus on CT imaging, although the patient is infectious and has a positive pathogenic test for New Coronavirus. This part of the patients often shows these conditions: 1. During the 14-day medical isolation period of observation, although the respiratory specimens can be tested positive for neo-coronavirus, there is no self-sensory discomfort and no clinically recognizable signs and symptoms, and they are in an absolutely asymptomatic period, after which no relevant symptoms are always manifested; 2. In an asymptomatic state of infection during the incubation period, and subsequently This group of people should be monitored and closely followed for symptoms such as fever, cough, and malaise after the incubation period, and avoid contact with this group of people to avoid the possibility of contracting Newcastle pneumonia. Although this type of infection is asymptomatic, but still requires treatment, if after the nucleic acid test of the new coronavirus turns negative, there are still no obvious symptoms, can be after intensive observation and follow-up, need two more 24 hours of consecutive specimens nucleic acid test are negative, a long time to confirm the possibility of re-positive, before they can be decontrolled and return to normal status.