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Related Experiment Videos

Allergy in laboratory animal workers.

A Cockcroft, J Edwards, P McCarthy

    Lancet (London, England)
    |April 11, 1981
    PubMed
    Summary

    Laboratory animal exposure can cause allergic symptoms like rhinitis and asthma, even in non-atopic individuals. Skin tests are useful, but not all symptomatic workers react, indicating complex sensitization mechanisms.

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    Area of Science:

    • Occupational health
    • Immunology
    • Allergology

    Background:

    • Workers handling laboratory animals can develop allergic conditions.
    • Understanding the mechanisms of animal sensitization is crucial for workplace safety.

    Purpose of the Study:

    • To investigate the prevalence and characteristics of allergic symptoms in individuals working with laboratory animals.
    • To explore the relationship between atopy, skin reactivity, and animal-related symptoms.

    Main Methods:

    • A study involving 179 laboratory animal workers.
    • Utilized questionnaires, lung-function tests, skin prick tests, and serological analyses.
    • Included allergen extracts from common allergens and animal serum/urine.

    Main Results:

    • 49% of workers reported symptoms (rhinitis, asthma, skin rashes) linked to animal contact.
    • Skin reactivity correlated with asthma but not always with rhinitis.
    • No precipitating antibodies or specific IgG detected via ELISA; lung function remained normal.

    Conclusions:

    • Occupational sensitization to laboratory animals can affect individuals regardless of atopic status.
    • Heavy antigen exposure may play a role in sensitizing even less reactive individuals.
    • Excluding atopic individuals alone is insufficient to prevent animal-related occupational allergies.

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