Abstract:
Objective To understand the epidemiological characteristics of other infectious diarrheal diseases in Shenzhen, Guangdong province, during 2010-2015 and provide evidence for the further surveillance. Methods Epidemiological data of reported cases of other infectious diarrheal diseases and related public health emergencies during this period were collected from National Disease Reporting Information System and Public Health Emergency Information System. The disease cluster data and etiological surveillance data were collected from Shenzhen Communicable Disease Information System. Descriptive statistical analysis was performed. Results The reported annual incidence of other infectious diarrheal diseases was about 250.00/100 000 in Shenzhen during 2010-2015, but in 2013 the incidence was 383.44/100 000. The cases were mainly caused by rotavirus, accounting for 69.16%. Bacterial diarrhea cases accounted for 14.22% and the cases caused by unknown pathogens accounted for 16.44%. The incidence peak of bacterial diarrhea was during June-September, and the incidence peak of viral diarrhea was during October-February. The cases were mainly children aged 5 years, accounting for 87.43%. The etiological surveillance indicated that vital diarrhea was mainly caused by rotavirus, and bacterial diarrhea was mainly caused by Salmonella, Vibrio parahaernolyticus and Escherichia coli. The positive detection rate was nearly consistent with the monthly incidence. Norovirus was the major pathogen causing outbreaks with the incidence peak during October-March, and 90.76% of the outbreaks occurred in child care settings and primary schools. Conclusion The current surveillance system of other infectious diarrheal diseases is based on hospitals in Shenzhen, which can provide timely epidemiological and etiological information of visiting diarrhea patients and outbreaks, but the surveillance and disease burden evaluation in communities needs to be further improved.