Epidemiological analysis of notifiable infectious diseases in preschool children in Pudong New Area of Shanghai in 2005-2021 / 公共卫生与预防医学

ABSTRACT

Objective　 To provide a scientific basis for the prevention and control of notifiable infectious diseases in preschool children, and to improve the service level of children's health management.　 Methods Infectious disease information was obtained from the Infectious Diseases Reporting Information System of Chinese Center for Disease Control and Prevention, and the number of permanent residents was obtained from Shanghai Statistical Yearbook. Excel 2019 was used to organize and calculate data and draw charts. Descriptive statistical methods were used for analyzing disease ranking and epidemic trends. Seasonal characteristics were calculated by concentration M value and circular distribution, α=0.05.　 Results　 In the reports of notifiable infectious diseases for preschool children, boys (60.93%) were significantly more than girls, and the largest number of children reported were 3-4 years old (43.19%). The unit with the largest number of reports was Shanghai Children's Medical Center (47.31%). The order of the diseases was hand, foot, and mouth disease (HFMD), chickenpox, mumps, scarlet fever, influenza, and infectious diarrhea. HFMD accounted for 73.52% of the total (46 541/63 304). The incidence of notifiable infectious diseases among preschool children had been increasing since 2005, reaching a peak in 2014, and then showing a downward trend overall. In the 17 years from 2005 to 2021, there were 3 years (2008, 2010, and 2018) with a concentration M value of 0.3-0.5, indicating that there was a certain seasonality, and one year (2020) with an M value of 0.5-0.7, indicating obvious seasonality. The peak of incidence mostly occurred from June to August.　 Conclusion 　It is suggested to strengthen the health guidance of HFMD in preschool children and increase the vaccination rate of HFMD vaccine to reduce the health harm of HFMD to preschool children. The prevention and control of COVID-19 has had an inhibitory effect on the occurrence of notifiable infectious diseases in preschool children.