All close contacts of two confirmed patients with pneumonic plague who came to Beijing for medical treatment from Xilingol League, Inner Mongolia, had been released from isolation after medical observation according to protocol by 8:00 am on November 21, 2019. The news was posted on the Beijing municipal government website, Windows of the Capital[1]. As the first emergency department in Beijing since the founding of the People's Republic of China to be placed in such position, we have accumulated some prevention and control experience in response to this Infectious disease. Now we report the relevant situation as follows.