Journal of Tropical Diseases and Parasitology ›› 2023, Vol. 21 ›› Issue (1): 1-6.doi: 10.3969/j.issn.1672-2302.2023.01.001

• SPECIALARTICLES FOR OTHER INFECTIOUS DIARRHEA •     Next Articles

Epidemiological characteristics of public health emergencies caused by other infectious diarrhea in China from 2017 to 2021

REN Jing-huan(), WANG Rui()   

  1. Public Health Emergency Center, Chinese Center for Disease Control and Prevention, Beijing 102206, China
  • Received:2022-12-30 Online:2023-02-20 Published:2023-02-28

Abstract:

Objective To understand the occurrence and epidemiological characteristics of public health emergencies caused by other infectious diarrhea in China, so far as to provide evidence for early warning and effective control of such events. Methods The data on other infectious diarrhea were retrieved through National Report Management Information System of Public Health Emergency reported from 2017 to 2021, and analyzed for the epidemiological characteristics using descriptive epidemiology. Results In total, 2 360 other infectious diarrhea events were reported between 2017 and 2021 in 28 provinces (autonomous regions and municipalities directly under the central government), which involved 90 689 cases and 5 deaths. Other infectious diarrhea was highly prevalent in winter and spring season, and respectively peaked during November and December and following March. Most incidents and cases were reported in Zhejiang, Guangdong, Jiangsu, Chongqing, Fujian, Shandong, Anhui, Guangxi, Hunan and Hubei provinces. The pathogen responsible for other infectious diarrhea was clearly identified in 2 269 events, which accounted for 95.7% (2 171/2 269) of the events caused by virus infection. 3.7% (84/2 269) and 0.6% (14/2 269) were caused by bacterial infection and mixed virus/bacteria infection, respectively. Norovirus infection accounted for 93.5% (2 122/2 269) of all other infectious diarrhea with definite pathogens. Contact transmission via daily activities, intake of the contaminated food and drinking water were mainly responsible for other infectious diarrhea events, and the events caused by life-contact transmission account for the highest proportion (51.0%, 1 204/2 360). Schools as well as kindergartens, were the main places where other infectious diarrhea occurred, with a total of 2 163 cases reported. Conclusion Other infectious diarrhea events tends to be upward trend in China in recent years. The major pathogen is associated with norovirus, schools and kindergartens are the main places where it occurs. Implementation of health supervision in key places such as schools and health education for the key population, strengthening the management of food safety and drinking water hygiene, improving the epidemiological investigation and etiological diagnosis of other infectious diarrhea as well as the level of event monitoring report can effectively prevent and control the occurrence of such events.

Key words: Other infectious diarrhea, Epidemiological characteristics, Public health emergency, Surveillance

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