1. Scene setting: xx, 2022, respiratory ward, patient Wang, female, 46 years old. On March 4th, he complained of coughing up yellow phlegm for 3 days and came to the outpatient department of the hospital. There was no fever before admission, and the code scanning, current regulation and temperature measurement were normal. The patient has no history of living in a middle-high risk area, with slightly higher white blood cells and negative nucleic acids and antibodies. Lung CT showed patchy shadows in the lower lobes of both lungs, which was diagnosed as pneumonia when admitted to hospital. Fever and cough occurred three days after admission, and the body temperature was 37.8℃. The responsible doctor A and the responsible nurse B wore medical protective masks, working caps, gloves and isolation gown in the clean area, and goggles/protective screens and/or shoe covers/boots when necessary, and entered the transitional ward for diagnosis and treatment of the patients. The ward doctor arranged for the patient to live in a single room in isolation according to the hospital's treatment process for patients with fever, and rechecked the nucleic acid and blood routine. On xx, the COVID-19 nucleic acid test in the clinical laboratory was positive.

2. Exercise process: 09: 00 (morning)-Patients and their accompanying staff enter the fever clinic hall of the hospital, and the pre-screening and triage medical staff disinfect the hands of patients and their accompanying staff. At the same time, they observe whether to wear a mask (pay attention to keeping a distance from the patient), supervise the patients and their caregivers to scan the travel code and health code, measure the patient's temperature with a forehead temperature gun of 38. 1℃, conduct an epidemiological investigation on the patients and their caregivers, and fill out an epidemiological questionnaire.

3.09: 05 (morning) —— The guiding nurse guides the patients and their accompanying staff to register at the registration window, then go to the outpatient clinic and hand over the epidemiological questionnaire to the doctor. The doctor inquired about the patient's epidemiological history again and took his temperature. As the patient is a supermarket cold chain food salesman with fever, runny nose, cough and cold symptoms, doctors highly suspect COVID-19 infection. The doctor prescribed routine bleeding, novel coronavirus nucleic acid test, lung CT and other inspection items, and prescribed nucleic acid virus test items for the accompanying personnel, and disinfected them according to the disinfection standard.