Chest tightness, shortness of breath, and dyspnea are not necessarily novel coronaviruses. Novel coronavirus with a history of epidemiological exposure, short-term exposure to suspected or confirmed patients, common symptoms include fever, malaise, sometimes respiratory symptoms such as sore throat, cough, coughing, and respiratory distress in severe cases, and sometimes gastrointestinal symptoms such as abdominal pain, diarrhea, nausea and vomiting. Patients with a history of epidemiological exposure presenting with the above clinical manifestations should actively seek medical attention to improve the blood routine, C-reactive protein, lung CT, nucleic acid test and other related tests. If the patient has two consecutive positive nucleic acid tests, the diagnosis of novel coronavirus infection can be confirmed and the patient should be treated in isolation in a specialized hospital.