According to data from the China Information System for Disease Control and Prevention and the Quzhou City Statistical Yearbook, the incidence of varicella in Quzhou City showed an increasing trend from 2009 to 2013, with an average incidence rate of 33.73 per 100,000.
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Seroepidemiological survey of the population 10 years after the implementation of the varicella vaccine 2-dose immunization strategy.
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