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Surveillance results of adverse events following immunization in Zhenjiang City in 2016
Pages: 2534-2536,2540
Year: Issue:  18
Journal: Occupation and Health

Keyword:  VaccinationAdverse reactionSurveillance;
Abstract: [Objective] To analyze the features of the adverse events following immunization (AEFI) in Zhenjiang City in 2016,evaluate the implementation of AEFI surveillance system,safety of vaccines in national immunization programs (NIP) and the quality of vaccination service.[Methods] The data in Zhenjiang City in 2016 were collected from national AEFI surveillance system,and relevant epidemiological indicators were analyzed with the descriptive method.[Results] Totally 2 150 cases of AEFI were reported in 2016,and the total reported incidence rate was 304.81 per 100 000 doses.There were 2 060 cases with general reactions,88 cases with vaccine paradoxical reactions and 2 cases with coincidental illness,which accounted for 95.81%,4.09% and 0.10%,respectively.23 kinds of vaccines were involved in AEFI cases,and 929 AEFI cases were induced by diphtheriapertussis-tetanus (DPT) vaccine (no-cells),accounting for 43.21%.The ratio of male-to-female was 1.18 ∶ 1,81.40% of patients were children ≤ 1 year old,and peak season appeared in July.The reactions concentrated within 3 days after vaccination,accounting for 96.84%.2 060 cases were diagnosed with fever,local swelling and local indurations,accounting for 95.81%.[Conclusion] The AEFI surveillance system in Zhenjiang City works in good condition,and safety of NIP vaccines and the quality of vaccination service are satisfactory.
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