Abstract：Objective To analyze the epidemic characteristics of other infectious diarrhea cases in Beijing during 2018-2021, and to provide a basis for adjusting prevention and control measures. Methods The data of the cases were obtained from the module of Infectious Disease Surveillance in the Disease Prevention and Control Information System for National Health Informatization, and the information about other infectious diarrhea cases in Beijing from 2018 to 2021 was used for statistical analyses. Descriptive epidemiological methods were employed to analyze the epidemiological features of other infectious diarrhea, including disease prevalence and pathogen spectrum. The constituent ratios of diseases in different groups were compared by chi-square test. Results Due to the impact of the SARS-CoV-2 pandemic, the number and incidence rate of other infectious diarrhea decreased significantly in 2020 and 2021 compared with those in 2019. There were two peaks of incidence for other infectious diarrhea in summer (June-August) and winter (from December to January the next year). The incidences were high in children under 5 years old and young adults aged 20-39 years, with more male cases than female ones. The highest incidence was observed in scattered children, accounting for 39.03% (14,218/36,428) in 2018, 35.69% (13,264/37,169) in 2019, 38.55% (5,076/13,169) in 2020 and 27.53% (5,858/21,277) in 2021. There were statistically significant differences in annual constituent ratios of other infectious diarrhea in different age groups (χ2=305,483.680, P<0.001) and different genders (χ2=370.854, P<0.001). Among the laboratory confirmed cases, the ratios of rotavirus infection from 2018 to 2021 were the highest,accounting for 94.95% (4,135/4,355), 92.13% (4,469/4,851), 67.20% (803/1,195) and 64.39% (1,472/2,286) respectively. Conclusion The number and incidence of other infectious diarrhea in 2020 and 2021 declined significantly onaccount of the impact of the SARS-CoV-2 pandemic. The number and incidence of other infectious diarrhea were relatively high in children under 5 years of age. The rate of report for laboratory confirmed cases should be improved urgently.
2023, Vol. 30 
