Epidemiological characteristics of varicella in Songjiang Districtï¼ Shanghai from 2013 to 2021
Journal Title: Shanghai Journal of Preventive Medicine - Year 2023, Vol 35, Issue 7
Abstract
ObjectiveTo evaluate the effectiveness of the varicella vaccine immunization strategy in Shanghaiï¼ and to provide evidence for enhancing prevention and control measures by analyzing the incidence and trends of varicella in Songjiang Districtï¼ Shanghai from 2013 to 2021.MethodsA descriptive analysis was conducted on 12 417 varicella cases reported in Songjiang District between 2013 and 2021. The epidemiological distribution of varicella cases was describedï¼ and the incidence rates were compared among different demographic variablesï¼ including registered residenceï¼ genderï¼ ageï¼ and occupation.ResultsA total of 12 417 varicella cases were reported in Songjiang District from 2013 to 2021ï¼with an average annual incidence of 77.03/105. The incidence of varicella showed an increasing trend from 2013 to 2017 ï¼Ï2trend=19.39ï¼ P<0.001ï¼ï¼ followed by a subsequent decrease from 2017 to 2021ï¼Ï2trend=758.62ï¼ P<0.001ï¼. Varicella cases demonstrated significant seasonal variationï¼ with peak incidences occurring in April to May and November to January of the following year. The incidence rate among local residents was higher than that among non-local residents ï¼Ï2=2 935.58ï¼ P<0.001ï¼. Most ï¼38.59%ï¼ of the cases were students aged between 5 and 9 years oldï¼ accounting for 23.45% of the total cases. Howeverï¼ the age distribution of cases varied over the years ï¼Ï2=615.57ï¼ P<0.001ï¼ï¼ and the incidence among children aged 5 to 9 years showed a declining trend since 2017.ConclusionThe overall incidence of varicella in Songjiang District exhibites a declining trend in recent years. Although varicella primarily affects childrenï¼ there have notable changes in the age distribution. Adjustment of the immunization strategy for varicella vaccines in Shanghai effectively reduces the proportion of school-age subjects.
Authors and Affiliations
ZHU Qi,QIAN Jingxian,SHEN Jinhua,CHEN Wenhua,SHEN Jingwen,LU Hongmei,
Investigation of infestation and disposal of bedbugs in Shanghai
Objective To investigate the infestation and disposal of bedbugs in Shanghai, and provide scientific evidence for comprehensive prevention and control of bedbugs.Methods A questionnaire survey was conducted in the pest...
Study on the stability of SARS-CoV-2 at different temperatures
<b>Objective:To observe the stability of severe acute respiratory syrdrome coronavirus (SARS-CoV-2) in cell cultures at different temperatures so as to provide basic data and scientific basis for the research and contr...
China-Russia cooperation mechanism for pandemic prevention and control in the post-pandemic era
Since the outbreak of COVID-19ï¼ the governments of China and Russia have strengthened their responsibilities and actively implemented border control measures. Simultaneouslyï¼ good results have been achieved in the pr...
Analysis of the current status and related factors of first aid knowledge among middle-aged and elderly residents in a community in Shanghai
Objective To investigate the current status of first aid knowledge among middle-aged and elderly residents aged 50 and above in a community in Shanghai, in order to provide reference for improving the self-rescue and mu...
Epidemiological characteristics of malignant tumor mortality among residents in Yuyao from 2014 to 2021
ObjectiveTo determine the death level and change trend of malignant tumors among residents in Yuyaoï¼ and to provide support for accurate prevention and control of malignant tumors.MethodsWe collected the death monitori...