Researchers (24) | Laboratory technicians (10) | Animal handlers (6) | Total (40) | |
---|---|---|---|---|
Female/male | 13/11 | 9/1 | 4/2 | 26/14 |
Age (years) | 24–47 (mean 30) | 26–54 (mean 39) | 36–56 (mean 46) | 24–56 (mean 35) |
Exposure time before rhinitis | ||||
1–3 months | 10 | 4 | 1 | 15 |
1–3 years | 11 | 5 | 2 | 18 |
>3 years | 3 | 1 | 3 | 7 |