?:authorAffiliation
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[\'Department of Epidemiology and Biostatistics, School of Public Health, Peking University.\', \'Department of Laboratorial Science and Technology, School of Public Health, Peking University.\', \'National Immunization Program, Chinese Center for Disease Control and Prevention.\', \'Department of Microbiology and Center of Infectious Diseases, School of Basic Medical Sciences, Peking University.\']
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