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Exposure of laboratory animal workers to airborne rat and mouse urinary allergens

Background Laboratory animal workers are at high risk of developing occupational allergy. Little is known about the relationship between levels of exposure and the risk of developing laboratory animal allergy. Since laboratory animal work comprises a large number of different — often short lasting — tasks, it is of interest to assess which activities are associated with high. low or intermediate levels of allergen exposure. Objective To develop and evaluate highly sensitive immunoassays in order to quantify rat and mouse urinary allergens in airborne dust sampled during short‐lasting tasks.