ABSTRACT
A novel coronavirus pneumonia (COVID-19) epidemic in a geracomium was retrospectively investigated and analyzed. The "novel coronavirus pneumonia prevention and control scheme (Third edition)" recommended questionnaire and the "novel coronavirus pneumonia epidemiological survey guide (Trial first edition)" were adopted. The novel coronavirus pneumonia was found in 8 nursing staff and the elderly in the geracomium. The median age was 59 years old, with a male/female ratio of 1:7. It was diagnosed 4-15 days after the last exposure. 225 close contacts were identified, without three generations of continuous transmission. The possibility of asymptomatic infection is not excluded also;and one case died. The infection in this clustering was caused by confirmed case of COVID-19. It is suggested that prevention and control strategies should focus on the control and monitoring of geracomium, regulatory departments and other key places and key population.