Analysis of scarlet fever epidemic in Jinan Development Zone from 2019 to 2021
Objective To analyze the epidemiological characteristics of scarlet fever in Jinan Development Zone,and to pro-vide scientific basis for the control of scarlet fever in the district.Methods Descriptive epidemiological methods were used to analyze the time distribution,regional distribution,population distribution,etc.of the scarlet fever epidemic data of 5 sub-district offices in Jinan Development Zone from January 2019 to December 2021,as reported by China Disease Preven-tion and Control Information System.Results From 2019 to 2021,218 cases of scarlet fever and 0 deaths were reported in the development zone.The average annual incidence was 21.96 per 100 000.The incidence rate showed a decreasing trend from 2019 to 2021(x2=99.66,P＜0.001).The seasonal distribution of scarlet fever was mainly spring,summer and winter,with 194 cases(88.99％)reported.The cases were mainly distributed in Shunhua road sub-district office(160 cases,73.39％),Yongqiang sub-district office(26 cases,11.93％)and Suncun sub-district office(24 cases,11.01％),accounting for 96.33％(210/218)of the total number of cases.The majority of the patients were children in nursery care(131 cases,60.09％),followed by primary school students(61 cases,27.98％).The age of onset was mainly from 3 to 7 years old(192 cases,88.07％).The incidence ratio of male to female was 1.40∶1(127/91).Conclu-sions The epidemic of scarlet fever in Jinan Development Zone from 2019 to 2021 occurred more frequently in spring,summer and winter,and most of the cases were concentrated in children aged 3 to 7 years,with children in kindergarten and primary school students as the main incidence groups.In order to prevent and control the epidemic of scarlet fever,the public health department of Jinan Development Zone should strengthen the management of scarlet fever in key areas and key groups.
scarlet feverepidemicepidemiologychildren in kindergartenprimary school students
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