TY - JOUR AU - Dinh, Pham Ngoc AU - Long, Hoang Thuy AU - Tien, Nguyen Thi Kim AU - Hien, Nguyen Tran AU - Mai, Le Thi Quynh AU - Phong, Le Hong AU - Van Tuan, Le AU - Van Tan, Hoang AU - Nguyen, Nguyen Binh AU - Van Tu, Phan AU - Phuong, Nguyen Thi Minh T1 - Risk Factors for Human Infection with Avian Influenza A H5N1, Vietnam, 2004 T2 - Emerging Infectious Disease journal PY - 2006 VL - 12 IS - 12 SP - 1841 SN - 1080-6059 AB - 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. KW - Influenza A virus KW - H5N1 subtype KW - case-control studies KW - risk factor KW - human KW - Viet Nam KW - research KW - Vietnam DO - 10.3201/eid1212.060829 UR - https://wwwnc.cdc.gov/eid/article/12/12/06-0829_article ER - End of Reference