Epidemiological characteristics of Varicella in Hebi City,Henan,2017-2022
Objective To analyze the epidemiological characteristics of varicella in Hebi City,so as to provide scientific basis for the development of varicella prevention and control strategies.Methods Data on varicella incidence in Hebi City from 2017 to 2022 were collected from the China Disease Control and Prevention Information System.The incidence rate was calculated,and descriptive epidemiological methods were used to analyze the reported incidence and its trends,population distribution,temporal distribution,and spatial distribution.Results A total of 2 135 varicella cases were reported,with an annual reported incidence rate ranging from 11.24/105 to 26.79/105,and an average of 21.97/105.There was a decreasing trend in incidence(x2trend=67.202,P＜0.05).The average annual reported incidence rate was higher in males was(23.92/105)than in females(19.97/105)(x2=17.256,P＜0.05).The 6～＜12 years age group accounted for 41.08％of cases,with students predominantly making uo 60.05％;The cases showed a bimodal distribution in all years except 2022,with peaks on October to following January and April to August.Cases were reported in all counties and districts,and the highest annual incidence rates in Qibin District(33.70/105),Qixian County(29.46/105),and Shancheng District(23.02/105).Conclusions Varicella incidence in Hebi City has shown a decreasing trend from 2017 to 2022.Continued monitoring of varicella outbreaks,targeted health education,and inclusion varicella vaccine in the Expanded Immunization Program are recommended to further control varicella epidemics.
VaricellaIncidenceEpidemiological characteristicsExpanded Immunization Program
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