Analysis on influenza vaccination rate and safety of children aged 6 months to 5 years in Shunyi District of Beijing from 2016 to 2021 / 中国生物制品学杂志

ABSTRACT

@#ObjectiveTo understand the influenza vaccination rate and influencing factors of children aged 6 months to 5 years in Shunyi District,Beijing in June from 2016 to 2021,and analyze the surveillance status of suspected adverse events following immunization(AEFI)after vaccination.MethodsThe data of influenza vaccination and AEFI report of children,influenza vaccination status and follow-up observation of children with underlying diseases after the trial implementation of“Vaccination Recommendations”in Shunyi District of Beijing from 2016 to 2021 were collected to analyze the coverage rate and AEFI report.ResultsFrom 2016 to 2021,a total of 11 996 children aged 6 months to 5 years were vaccinated with influenza vaccine in Shunyi District of Beijing,and the vaccination rate increased year by year(χ2=11 921. 129,P < 0. 01；χ2=11 921. 129,P < 0. 01；χ2_(trend)= 8 881. 396,P < 0. 01);With age,the influenza vaccination rate showed a rising trend(χ2_(trend)= 8 881. 396,P < 0. 01);With age,the influenza vaccination rate showed a rising trend(χ2= 4 073. 395,P < 0. 01；χ2= 4 073. 395,P < 0. 01；χ2_(trend)= 3 495. 611,P < 0. 01);The vaccination rate of children in urban areas was higher than that in rural areas(χ2_(trend)= 3 495. 611,P < 0. 01);The vaccination rate of children in urban areas was higher than that in rural areas(χ2= 497. 153,P < 0. 01). 9 children with underlying diseases who met the “Proposal of Vaccination Experts” were followed up and no adverse reaction was observed after being vaccinated with influenza vaccine.Conclusion In Shunyi District of Beijing,the influenza vaccination rate for children aged 6 months to 5 years was relatively low,and no adverse reactions different from other vaccines have been detected. It was safe and reliable to vaccinate children suffering from basic diseases under the guidance of“Vaccination Recommendations”.