Surveillance for other infectious diarrheal diseases in Haidian district of Beijing, 2011-2015

Objective To understand the epidemiological characteristics of other infectious diarrheal diseases in Haidian district of Beijing from 2011 to 2015 and provide scientific evidence for the prevention and control of the diseases. Methods The incidence data of other infectious diarrheal diseases in Haidian during this period were collected from China Disease Reporting Information System for a descriptive epidemiological analysis. And stool samples were collected from the outpatients with diarrhea in a sentinel hospital in Haidian to detect the common viruses causing diarrhea, such as rotavirus and norovirus, with real-time fluorescence quantitative PCR. Results A total of 25 230 cases of other infectious diarrheal diseases were reported in Haidain from 2011 to 2015, and the reported annual incidence ranged from 107.18/100 000 to 188.63/100 000, showing a decline trend. The incidences in age group 5 years, 5-years and 60 years ranked top three. The case number in children outside child care settings was highest, accounting for 26.59%. The diseases mainly occurred in summer (June-August). Floating population were mainly affected. A total of 572 stool samples were collected to detect rotavirus and norovirus, the positive rate was 25.17% (144/572). Conclusion Other infectious diarrheal diseases mainly occurred in children outside child care settings in Haidian from 2011 to 2015, and summer was the peak season. Only virologic surveillance for diarrhea and targeting people aged 16 years are not appropriate for the prevention and control of other infectious diarrheal diseases. The surveillance strategy needs to be adjusted.