Patients with novel coronavirus pneumonia are generally not contagious when they are discharged from the hospital and are not contagious to others. Patients with novel coronavirus pneumonia can be discharged from isolation and treatment only if their symptoms improve, their condition stabilizes, and they test negative for nucleic acid twice, which means they are not contagious at this time. In order to avoid a return of positive nucleic acid after discharge, patients should continue to be managed in isolation and monitored for 14 days, wear a mask, live in a single room with good ventilation if possible, reduce close contact with family members, share meals, do hand hygiene, and avoid going outside. Novel coronavirus pneumonia is mainly transmitted through respiratory droplets, and patients are generally most infectious in the early stages of the disease. A positive nucleic acid test indicates infectiousness, while a negative nucleic acid test indicates no infectiousness.