Effect evaluation of a 2 dose varicella vaccine immunization strategy implemented to control outbreaks in school and kindergarten settings / 中华预防医学杂志
Chinese Journal of Preventive Medicine
; (12): 485-489, 2015.
Article
em Zh
| WPRIM
| ID: wpr-291592
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the effect of outbreaks control in school settings after a 2 dose varicella vaccine immunization strategy implemented in Beijing.</p><p><b>METHODS</b>Epidemiological data of varicella outbreaks in school and kindergarten settings, which were reported by all 16 districts (county) during 2007-2013 according to the technical management norms of Beijing, was collected. The first dose and second dose varicella vaccine coverage rate of eligible children after the 2 dose varicella vaccine immunization strategy implementation were estimated through BJIIMS. Based on above we analyzed the changes of outbreak quantity, case quantity and the distribution characteristics between the pre-adjustment era (2007-2011 years) and late adjustment era (2013) of the 2 dose immunization strategy.</p><p><b>RESULTS</b>In pre-adjustment era (2007-2011 years), an average of 74 (95% CI: 60-89) outbreaks was reported and 964 (95% CI: 812-1 116) cases were involved per year. In late adjustment era (2013): Outbreaks (35) declined 52.7%, involved cases (371) declined 61.5%; Outbreaks epidemic duration shortened from 22 days of pre-adjustment era to 18 days; Outbreaks involved 10-24 cases declined 64.7% (from 34 to 12); Outbreaks involved ≥ 25 cases declined 71.4% (from 7 to 2); Outbreaks of different school type as well as different regions without exception declined dramatically. Cumulative one-dose vaccine coverage in children of 2-6 yr of age was 89.6% (812 859/907 579), and cumulative second-dose vaccine coverage in children of 4-7 yr of age was 44.3% (289 764/647 732).</p><p><b>CONCLUSION</b>Implementation of a 2 dose varicella vaccine immunization strategy effectively controlled outbreaks in school and kindergarten settings.</p>
Texto completo:
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Índice:
WPRIM
Assunto principal:
Instituições Acadêmicas
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Estudantes
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Varicela
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Surtos de Doenças
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Vacinação
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Vacina contra Varicela
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Epidemias
Limite:
Child
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Child, preschool
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Humans
Idioma:
Zh
Revista:
Chinese Journal of Preventive Medicine
Ano de publicação:
2015
Tipo de documento:
Article