Epidemiological and etiological characteristics of hand-foot-mouth disease and herpangina epidemics in Fangshan District of Beijing municipality from 2015 to 2022
Objective To analyze the epidemiological and etiological characteristics of hand-foot-mouth disease(HFMD)and herpangina(HA)epidemics in Fangshan District of Beijing from 2015 to 2022,and to provide basis for the further prevention and control measures.Methods Basic and pathogenic information of HFMD and HA epidemics in Fangshan District from 2015 to 2022 were collected and analyzed by descriptive epidemiology.Counting doua were compared by Chi-square test or Fisher probability method.The test level was α=0.05.Results A total of 565 epidemics(40 epidemics involving HA cases)were reported in Fangshan District of Beijing from 2015 to 2022,with an annual reported number of epidemics ranging from 7 to 112.The epidemics occurred mainly in summer and autumn.Of these,487 epidemics occurred in the plain area,and the top two streets/towns with the largest number of epidemics were Gongchen Street and Changyang Town.Most epidemics occurred in childcare institutions,followed by households.There were statistically significant differences in the distribution of seasons and occurrence places of these epidemics among different years(all P＜0.05).The number of cases in each epidemic ranged from 2 to 23,and the number of cases in 371 epidemics was 2.There were statistically significant differences in the number of epidemic cases among different years and locations(all P＜0.001).There were 456 epidemics with qualitative results of etiology,mainly Cox A6,Cox A16 and other intestinal viruses.There were statistically significant differences in the composition of etiological results among different years and seasons(all P＜0.05).Conclusions The epidemics of HFMD and HA in Fangshan District of Beijing was seasonal,with a bimodal distribution.The epidemics mainly occurred in the plain area,and mostly occurred in childcare institutions and households.The epidemics in childcare institutions were prone to involving more cases,with Cox A6 as the dominant strain.
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