Legal basis: Article 39 of the Law of People's Republic of China (PRC) on the Prevention and Control of Infectious Diseases. When a medical institution finds a confirmed patient or pathogen carrier, it shall conduct isolation treatment, and the isolation period shall be determined according to the results of medical examination; Suspected patients should be treated in isolation in designated places before diagnosis; Close contacts of patients, pathogen carriers and suspected patients in medical institutions shall be observed in designated places and other necessary preventive measures shall be taken.