Case-control study of risk factors for human infection with influenza A(H7N9) virus in Jiangsu Province, China, 2013
Open Access
- 27 June 2013
- journal article
- Published by European Centre for Disease Control and Prevention (ECDC) in Eurosurveillance
- Vol. 18 (26), 20510
- https://doi.org/10.2807/1560-7917.es2013.18.26.20510
Abstract
We describe a case-control study performed in Jiangsu, China, to evaluate risk factors for human infection with novel avian influenza A(H7N9) virus. Twenty-five cases and 93 controls matched by age, sex, and location were included in the study. Direct contact with poultry or birds in the two weeks before illness onset, chronic medical conditions (hypertension excluded), and environment-related exposures were significantly associated with A(H7N9) infection.Keywords
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