Table 1.

Health emergency practice launched by China CDC’s EOC during 2017–2018

Period	Outbreak/disaster	Type	Location	Response levela	Comments/action taken
January–July, 2017	H7N9	Infectious disease outbreak	22 provinces, China	III	Coordinated departments to develop the epidemiological and lab test strategy
August–October, 2017	Earthquake	Nature disaster	Sichuan and Xinjiang, China	II	Deployed team to the field for the public health prevention and control
November, 2017– January, 2018	Plague	Infectious disease outbreak	Madagascar	II	Deployed team to the field for the public health prevention and control
July–Sepetember, 2018	Flood	Nature disaster	Sichuan and Gansu, China	III	Deployed team to the field for the public health prevention and control
July–October, 2018	Group events caused by substandard vaccines	Infectious disease outbreak	Shandong and Jilin, China	I	Assess the risk of problematic vaccine and develop reseeding strategies
July–October, 2018	Polio virus	Infectious disease outbreak	Xinjiang, China	III	Strengthen sampling and case monitoring, formulate vaccination strategies

^aThere are three different levels of China CDC’s response depending on the scale of the event. (i) Level III is the lowest level of response. Only one or two subject matter department lead to the response with their staff. However, EOC would not be activated. (ii) Level II involves more than two departments staff, or the relevant area and resources from the China CDC. Time-sensitive tasks and needs may extend beyond core business hours. EOC staff may lead or assist with the response. (iii) Level I is the highest level, requiring all agency-wide effort