| Primary |
| Thulin |
| 2002 |
| Sweden |
| HMW |
| Animal-derived antigens |
| Laboratory animal allergen |
| Laboratory animal handlers |
| Laboratory animal allergy |
| Re-design of animal housing, ventilated benches (mean:2 years) |
| 27 of 29 eligible subjects (Participation rate:93%) |
| Ventilations strategies reduced the allergen exposure levels four fold. Only two subjects developed specific immunoglobulin E > .35 KU/l, one who was reduced to negative after use of respiratory equipment. |
