Volume 18, Number 6—June 2012
Dispatch
Avian Influenza A (H5N1) Virus Antibodies in Poultry Cullers, South Korea, 2003–2004
Donghyok Kwon, Joo-Yeon Lee, Wooyoung Choi, Jang-Hoon Choi, Yoon-Seok Chung, Nam-Joo Lee, Hyang-Min Cheong, Jacqueline M. Katz, Hee-Bok Oh, Haewol Cho, and Chun Kang
Table 1
Demographic characteristics of 2,512 bird cullers exposed during December 2003–March 2004 to poultry with confirmed or suspected influenza (H5N1) virus infection, South Korea
| Characteristic | No. (%) cases | No. (%) positive |
|---|---|---|
| Age group, y, n = 2,055* | ||
| <20 | 74 (3.6) | 0 |
| 20–29 | 783 (38.1) | 5 (0.58) |
| 30–39 | 365 (17.8) | 1 (0.27) |
| 40–49 | 427 (20.8) | 3 (0.70) |
| 50–59 | 249 (12.1) | 0 |
| >59 | 157 (7.6) | 0 |
| Sex, n = 2,512 | ||
| M | 2,112 (84.1) | 9 (0.43) |
| F | 400 (15.9) | 0 |
| Type of work, n = 1,573 | ||
| Poultry farm worker† | 176 (11.2) | 0 |
| Culler | 1,327 (84.3) | 9 (0.68) |
| Other‡ | 70 (4.5) | 0 |
*No. persons whose epidemiologic history was available.
†Includes farm workers and their household members.
‡Includes epidemiologists, public health officials, and media reporters.
