Abstract
Objective To evaluate the epidemiologic features of chickenpox outbreak in a primary school of Beijing,investigate the source of the outbreak,and provide recommendations for the chickenpox control and prevention.Methods Descriptive epidemiological method was used to describe the epidemiological characters of this chickenpox outbreak.Results 57 students were infected with chickenpox virus from January 5,2012 to April 15,2012.There were 1320 students in the school.The attack rate of students in storied building was 6.5％.There were no statistics difference in the attack rate among the students of the second floor,the third floor and the fourth floor.Conclusions The main reasons of the outbreak were poor ventilation and low inoculation rate.It is important to improve the vaccination rate to reduce the risk of outbreak. Key words: Chickenpox; Outbreak ; Vaccine ; Epidemiologic feature
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