Medical date of suspected patients of 2019 Novel Coronavirus infection, who came to outpatient department of the Third Affiliated Hospital of Sun Yat-sen University, were sent to an expert group if they met the inclusion criteria. The expert group discussed and made a decision if the patient would be admission to isolation unit. Pharyngeal swabs of the patients were obtained and sent to local Center for Disease Control and Prevention (CDC) for detection the 2019 Novel Coronavirus after patients were admission to isolation unit. Diagnosis of 2019 Novel Coronavirus infection was confirmed if the result was positive or excluded if two consecutive results were negative. Patients' demographic data and clinical characteristics were recorded. Clinical characteristics including epidemiological history, past history, personal history, symptoms, signs, blood cells count, biochemical test results, chest computed tomography (CT) images and treatment. Comprehensive treatments were given to the patients.
