The Risk and Prevention of Novel Coronavirus Pneumonia Infections Among Inpatients in Psychiatric Hospitals

Dear Editor,Since the middle of December 2019, human-to-human transmission of novel coronavirus pneumonia（NCP, also called COVID-19） has occurred among close contacts [1] .After the outbreak on January 21, 2020, it was swiftly included among the Class B infectious diseases stipulated in the Law of the People’s Republic of China on the Prevention and Control of Infectious Diseases, and measures for prevention and control of Class A infectious