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  • Title: Animal allergen sensitization in veterinarians and laboratory animal workers.
    Author: Moghtaderi M, Farjadian S, Abbaszadeh Hasiri M.
    Journal: Occup Med (Lond); 2014 Oct; 64(7):516-20. PubMed ID: 25104279.
    Abstract:
    BACKGROUND: Animals secrete allergens into the environment and exposure to these in the workplace may cause sensitization. AIMS: To identify the frequency of animal allergen sensitization and symptoms in animal workers. METHODS: Using skin prick tests (SPT), we assessed sensitization to 15 mammal and bird allergens in animal workers and controls. We also recorded symptoms and pulmonary function tests. RESULTS: There were 100 animal workers and 50 controls included in the study. Thirty-six per cent of animal workers and 10% of controls had positive SPT (P < 0.001, odds ratio [OR] = 5.1, 95% CI 1.7-16.0). The most common sensitizations were to horse (16% in animal workers versus 0% in controls, P < 0.01), canary (16% in animal workers versus 2% in controls, P < 0.05, OR = 9.3, 95% CI 1.2-194), cattle (13% in animal workers versus 0% in controls, P < 0.05), cat (12% in animal workers versus 6% in controls, not significant), rabbit and hamster (10% each in animal workers versus 0% in controls, P < 0.05). Allergy symptoms were reported by 52 animal workers, but only 36 of them had positive SPT. Twelve animal workers had abnormal pulmonary function tests and six had positive SPT. CONCLUSIONS: Animal workers are at high risk of occupational sensitization to animal allergens. Exposure should be minimized through control measures and worker education about the risks of exposure and sensitization.
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