Risk Factors for Influenza A(H1N1)pdm09 among Students, Beijing, China
To identify risk factors associated with influenza A(H1N1)pdm09 among students in Beijing, China, we conducted a case–control study. Participants (304 case-patients and 608 controls, age range 6–19 years) were interviewed by using a standardized questionnaire. We found that in addition to vaccinatio...
Main Authors: | , , , , , , , |
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Format: | Online |
Language: | English |
Published: |
Centers for Disease Control and Prevention
2013
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Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3559042/ |