Abstract: Abstract: Objective   To understand the epidemiological features of public health emergencies at Dantu District of Zhenjiang City during 2010 to 2021, so as to improve the levels of prevention and ability to respond the emergency. Methods   The data involved in public health emergencies in Dantu District were collected from 2010 to 2021 through the Information System for China Disease Prevention and Control. The descriptive epidemiology was used to analyze the event level, category, transmission route and three-dimension distribution, etc. Results   In total, 14 events of public health emergencies were reported in Dantu District between 2010 and 2021, which involved 589 cases, with an attack rate of 4.21% (589/13 992). The emergencies consisted of 6 general events (level Ⅳ, 42.86%), and 8 unclassified events (57.14%). All events were emergencies of infectious disease, in which 11 events were Class C infectious diseases (78.57%). The emergencies appeared primarily from March to June, during which 10 events were reported (71.43%), and another 4 events were reported between November and December (28.57%). The emergencies were dominant in rural villages (12 events, 85.71%) and schools (13 events, 92.86%). The median time was 7.63 days for the emergencies reported, the median duration was 12.48 days, and the events lasted longer with delayed report (r_s=0.754，P<0.05). Conclusion   The public health emergencies in Dantu District of Zhenjiang City are mainly Class C infectious diseases. Our findings suggest that schools and rural areas should be taken as focal places to be monitored for early warning and effective prevention and control of the public health emergencies.

Key words: Public health emergencies, Epidemic characteristics, Infectious disease, Dantu District