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Occupational allergy to laboratory animals: an epidemiologic study
Journal of Occupational Medicine. : Official Publication of the Industrial Medical Association
|November 1, 1986
Summary
Laboratory animal allergy (LAA) affects 23.9% of exposed workers. Pre-existing allergies and higher exposure levels significantly increase LAA risk, indicating a dose-response relationship.
Area of Science:
- Occupational Health
- Immunology
- Toxicology
Background:
- Laboratory animal allergy (LAA) is a significant occupational health concern.
- Understanding LAA prevalence and risk factors is crucial for prevention strategies.
Purpose of the Study:
- To determine the prevalence of LAA in laboratory animal workers.
- To compare general allergy prevalence between exposed workers and a control group.
- To identify factors associated with LAA development.
Main Methods:
- Cross-sectional study involving interviews with 289 light-to-moderate exposure workers, 260 heavy exposure workers, and 242 controls.
- Data collected on general allergy, LAA, atopic history, domestic animal allergy, species handled, and exposure duration.
- Statistical analysis to compare prevalence and identify correlations.
Main Results:
- Overall LAA prevalence was 23.9% in the exposed population.
- General allergy prevalence was slightly higher in exposed workers (39%) than controls (33.9%), but not statistically significant.
- Significant correlations found between LAA and atopic history, domestic animal allergy, number of species handled, and weekly exposure hours, showing dose-response effects.
Conclusions:
- LAA is prevalent in laboratory animal workers.
- Occupational exposure to laboratory animals poses a risk for developing allergies.
- Factors such as prior allergic conditions and intensity/duration of exposure are key risk factors for LAA.