Volume 14, Number 3—March 2008
Dispatch
Low Frequency of Infection with Avian Influenza Virus (H5N1) among Poultry Farmers, Thailand, 2004
Soawapak Hinjoy*, Pilaipan Puthavathana†, Yongjua Laosiritaworn*, Khanchit Limpakarnjanarat‡, Phisanu Pooruk†, Teerasak Chuxnum*, James M. Simmerman‡
, and Kumnuan Ungchusak*
, and Kumnuan Ungchusak*
Table
Characteristics of 322 persons living on poultry farm in areas where avian influenza (H5N1) infections among poultry and humans had been confirmed since January 2004, Thailand
| Variable | No. persons (%) |
|---|---|
| Province | |
| Chachoengsao | 61 (18.9) |
| Kanchanaburi | 32 (9.9) |
| Khon Kaen | 65 (20.2) |
| Sukhothai | 84 (26.1) |
| Suphanburi |
80 (24.8) |
| Sex | |
| M | 155 (48.1) |
| F |
167 (51.9) |
| Age, y* | |
| <10 | 15 (4.7) |
| 11–20 | 32 (9.9) |
| 21–30 | 49 (15.2) |
| 31–40 | 121 (37.6) |
| 41–50 |
105 (32.6) |
| Current smokers | 67 (20.8) |
| Chronic illness |
74 (23.0) |
| Type of poultry maintained† | |
| Layer hen | 111 (34.5) |
| Broiler | 42 (13.0) |
| Fighting cock | 88 (27.3) |
| Backyard chicken | 89 (27.6) |
| Egg-laying duck | 7 (2.2) |
| Meat duck | 8 (2.5) |
| Ornamental birds |
3 (0.9) |
| Type of poultry farm | |
| Company farm | 125 (38.8) |
| Individual farm (backyard) |
197 (61.2) |
| Observed increased deaths of poultry | 231 (71.7) |
| Living on a mixed swine/poultry farm | 24 (7.5) |
*Age range 5–50 y; median 35 y.
†Not mutually exclusive.
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