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- Title
Risk Factors for Human Infection with Avian Influenza A H5N1, Vietnam, 2004.
- Authors
Pham Ngoc Dinh; Hoang Thuy Long; Nguyen Thi Kim Tien; Nguyen Tran Hien; Le Thi Quynh Mai; Le Hong Phong; Le Van Tuan; Hoang Van Tan; Nguyen Binh Nguyen; Phan Van Tu; Nguyen Thi Minh Phuong
- Abstract
To evaluate risk factors for human infection with influenza A subtype H5N1, we performed a matched case-control study in Vietnam. We enrolled 28 case-patients who had laboratory-confirmed H5N1 infection during 2004 and 106 age-, sex-, and location-matched control-respondents. Data were analyzed by matched-pair analysis and multivariate conditional logistic regression. Factors that were independently associated with H5N1 infection were preparing sick or dead poultry for consumption ≤7 days before illness onset (matched odds ratio [OR] 8.99, 95% confidence interval [CI] 0.98-81.99, p = 0.05), having sick or dead poultry in the household ≤7 days before illness onset (matched OR 4.94, 95% CI 1.21-20.20, p = 0.03), and lack of an indoor water source (matched OR 6.46, 95% CI 1.20-34.81, p = 0.03). Factors not significantly associated with infection were raising healthy poultry, preparing healthy poultry for consumption, and exposure to persons with an acute respiratory illness.
- Publication
Emerging Infectious Diseases, 2006, Vol 12, Issue 12, p1841
- ISSN
1080-6040
- Publication type
Academic Journal
- DOI
10.3201/eid1212.060829