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Influence of vaccine immunization schedule adjustment on the incidence of varicella in Jinnan District of Tianjin
Pages: 953-956
Year: Issue:  7
Journal: Occupation and Health

Abstract: [Objective] To understand the epidemic characteristics of varicella in Jinnan District of Tianjin,and observe the influence of the implement of two-dose-immunization schedule on the incidence of varicella..[Methods] The data of varicella incidence monitoring and vaccine usage in Jinnan District of Tianjin from 2010-2015 were analyzed retrospectively [Results]①There were 2 909 cases of varicella in Jinnan district from 2010-2015.The incidence peaks were observed from April to May and November to January.About 68.65% of the cases mainly occurred in children under 15 years old,and 48.54% were students.②The highest cumulative vaccination rates of first dose and second dose schedule were all in 6~<7 and 5~<10 years old age group in 2015,which accounted for 86.43% and 46.46%,respectively.Second dose of varicella vaccine mainly concentrated in 4 ~7 years old.③Five-years-old group was as class interval,the incidences of varicella in 0~<5 and 5~<10 years old age group in 2015 was lower than that in 2013.④One-year-old group was as class interval,the incidences of varicella in 3~<4,4~<5 and 5~<6 years old age group in 2015 was lower than that in 2013.⑤The 186 cases of 485 could be found immunization history accurately in 2015,109 (58.6%)cases had vaccinated one dose varicella vaccine.They occurred varicella after vaccinating vaccine (5.66±2.41) a.[Conclusion] After taking two-dose-immunization schedule,the epidemiologic characteristic of varicella in Jinnan district don't change much,but the immune effect is superior to one-dose-immunization schedule.
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