Journal of Tropical Diseases and Parasitology ›› 2025, Vol. 23 ›› Issue (1): 12-16.doi: 10.20199/j.issn.1672-2302.2025.01.003

• TOPICS ON OTHER INFECTIOUS DIARRHEA PREVENTION AND CONTROL • Previous Articles     Next Articles

Analysis on the epidemiological characteristics of other infectious diarrhea in children at age 5 and younger in Chongqing Municipality, 2017-2023

LI Zhijin1,2(), YUAN Yi2, XIA Yu2, FU Xiaoqing1,2, QI Li1,2()   

  1. 1. School of Public Health, Southwest Medical University, Luzhou 646000, Sichuan Province, China
    2. Chongqing Center for Disease Control and Prevention
  • Received:2024-12-11 Online:2025-02-20 Published:2025-04-03
  • Contact: QI Li E-mail:lzj514@foxmail.com;qili19812012@126.com

Abstract:

Objective To analyze the epidemiological characteristics of other infectious diarrhea in children aged 5 years and below in Chongqing Municipality for scientific evidences in formulating prevention and control of other infectious diarrhea in children. Methods The case data of other infectious diarrhea in children at age 5 years and younger reported in Chongqing from 2017 to 2023 were retrieved through the Chinese Disease Prevention and Control Information System. Descriptive epidemiological methods were used to analyze the epidemic intensity, distribution characteristics in different region, population and time as well as etiology of other infectious diarrhea. The trend of the reported incidence in each year was analyzed by trend χ2 test. Results A total of 213 267 cases of other infectious diarrhea were reported in children aged 5 and below in Chongqing from 2017 to 2023. The average annual incidence was 1 589.68/100 000, and the annually reported incidence ranged from 1 105.47/100 000 to 1 820.54/100 000. The prevalence peaked between December and March of following year, during which a total of 108 026 cases were reported, accounting for 50.65% of the total reported cases. The reported incidence was 1 716.38/100 000 for boys and 1 451.14/100 000 for girls. The highest incidence (4 546.50/100 000) was found in children aged <1 year. The reported prevalence differed a lot among different districts (counties) within the city, with the top three being Shapingba District (4 763.75/100 000), Ba′nan District (3 886.36/100 000) and Nan′an District (3 766.21/100 000). The pathogen types were clearly identified in 35 522 children aged 5 and below, which accounted for 16.66% (35 522/213 267) of the total cases in this age group. Among the cases with confirmed pathogen types, 78.14% (27 758/35 522) was associated with rotavirus infection. Conclusion The incidence of other infectious diarrhea in children aged 5 and below in Chongqing was generally high, and the prevalence varied significantly in different regions, seasons and age group. The confirmed cases were mainly involved in rotavirus infection. Our findings suggest that surveillance, prevention and control of other infectious diarrhea in children should continue to be strengthened in Chongqing Municipality.

Key words: Other infectious diarrhea, Children, Epidemiological characteristics, Chongqing Municipality

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