Novel coronavirus is a newly discovered respiratory disease with high infectiousness and morbidity in 2019, with a viral incubation period of 1-14 days and a longer incubation time for the newly discovered variant strains now. It is highly infectious throughout the incubation period, with some experts suggesting that peak transmission can be reached every 4 days during the incubation period, and others suggesting that viral load is highest within 1 week after onset, when it is most infectious. At the beginning of the new coronavirus, patients may have a dry cough, sore throat, fever, fatigue, abdominal pain, limb aches and other symptoms, which can be easily confused with the common cold at first. Therefore, if a patient has visited an infected area or been in contact with a suspected case of infection within the last 14 days, he or she needs to contact the community and hospital immediately for diagnosis and treatment with the help of health care professionals. In addition, since novel coronavirus can be transmitted through droplets and saliva, close contacts should also be observed at home, have their temperature checked and be tested for nucleic acid. Patients diagnosed with novel coronavirus infection need to actively cooperate with doctors for antiviral treatment. Common drugs include chloroquine phosphate, Abirater, ribavirin, etc. For severe and critically ill patients, plasma therapy may be added as appropriate. Most patients can be discharged from the hospital cured after active treatment.