Abstract: Objective To analyze the epidemiological characteristics of infectious diarrhea other than cholera, dysentery,typhoid and paratyphoid in Chongqing for evidence to scientifically plan prevention and control strategies. Methods The data were collected from the Infectious Disease Monitoring System under the Infectious Disease Report Information System in China on other infectious diarrhea cases reported in Chongqing from 2009 to 2019. Descriptive epidemiology was used to analyze the infection behavior. Results A total of 359 471 other infectious diarrhea cases were reported from 2009 to 2019 (total population incidence:110. 10/ 100 000), and 4 deaths were reported. The annual reporting rate was between
69. 75/ 100 000 and 156. 76/ 100 000, and tended to increase yearly(χ²_tendency = 986. 165,P<0. 001). Prevalence was peaked between July and September, and November and January of following year. Higher infections reported each year were Shapingba (354. 89/ 100 000), Nanan(260. 31/ 100 000) and Dianjiang (205. 11/ 100 000). Infection reported in population was higher in males(200 968 cases; incidence rate: 121. 10/ 100 000) than in females. Population aged under 5 years were most affected (68. 53% ; 246 347/ 359 471), particularly in children in nursery schools(66. 01% ; 237 279/359 471), followed by farmer (12. 09% ; 43 455/ 359 471). Virus(98. 29% ) was the dominant pathogen. Cases with rotavirus and Salmonella were 94. 05% ,52. 31% , respectively. A total of 189 aggregation events of other infectious diarrhea
were reported, with reported cases of 4 363. No death occurred. Conclusion The situation of other infectious diarrhea in Chongqing still remains very serious. Comprehensive intervention measures should be taken to effectively control the outbreak and epidemic.

Key words: Other infectious diarrhea, Epidemiological characteristic, Surveillance, Chongqing City