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Country China / / Facility Harvard Center / National Institute of General Medical Sciences / The University of Hong Kong / University Grants Committee / / MedicalCondition entire epidemics / Background Influenza virus infections / influenza virus infections / disease / asymptomatic disease / symptomatic illness / infection / influenza virus / Laboratory-confirmed influenza infection / Illness / severe pneumonia / infections / acute infections / Asymptomatic illness / / Organization University of Hong Kong / University Grants Committee of Hong Kong / National Institute of General Medical Sciences / Harvard Center for Communicable Disease Dynamics / Li Ka Shing Faculty of Medicine / / Person Nancy Leung / / Product SDI iP1 Speakers / / SocialTag 
The fraction of influenza virus infections that are asymptomatic: a systematic review and meta-analysis Nancy H. L. Leung1*, Cuiling Xu1, Dennis K. M. Ip1, Benjamin J. Cowling1 1School of Public Health, Li Ka Shing Facu