Research article Topical Sections

Airborne exposure to laboratory animal allergens

  • Received: 14 August 2017 Accepted: 21 September 2017 Published: 25 September 2017
  • Exposure to laboratory animal allergens remains a significant cause of IgE-mediated occupational allergy and asthma. Since 2005, we have measured the major mouse and rat allergens (mus m 1 and rat n 1) collected on filters from air sampling in a range of UK and non-UK animal facilities. Supplied core data allowed us to construct an anonymized database of atmospheric results in ng m–3 containing 3080 mouse and 1392 rat analyses. Roughly twice as many static samples compared to personal samples had been sent for analysis. The medians (90th percentiles) for the mouse and rat allergens employing personal atmospheric sampling were 2.6 (60.6) and 0.4 (12.4) ng m–3 respectively; for static samples the equivalent values were 0.2 (3.7) and 0.1 (1.4) ng m–3. Where unequivocal sample descriptors were provided with samples, results were categorised to activities/areas. Medians and 90th percentiles in these categories suggest that staff undertaking cleaning out, dumping of soiled bedding and cleaning cages can still have very substantial potential exposures in some facilities. The move to filtered cages appears to reduce general exposure, but filter changing and/or cleaning can lead to high exposures. In some facilities, animal receipt can cause significant exposures, as well as activities such as bleeding, culling and dosing; all activities involving the handling of animals outside of cages. We believe that the data presented may help those using air measurements in such facilities to improve their control of exposure to such aeroallergens, and thus reduce the risk of both sensitisation and subsequent allergic health problems, including the development of allergic asthma.

    Citation: Howard J Mason, Laura Willerton. Airborne exposure to laboratory animal allergens[J]. AIMS Allergy and Immunology, 2017, 1(2): 78-88. doi: 10.3934/Allergy.2017.2.78

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  • Exposure to laboratory animal allergens remains a significant cause of IgE-mediated occupational allergy and asthma. Since 2005, we have measured the major mouse and rat allergens (mus m 1 and rat n 1) collected on filters from air sampling in a range of UK and non-UK animal facilities. Supplied core data allowed us to construct an anonymized database of atmospheric results in ng m–3 containing 3080 mouse and 1392 rat analyses. Roughly twice as many static samples compared to personal samples had been sent for analysis. The medians (90th percentiles) for the mouse and rat allergens employing personal atmospheric sampling were 2.6 (60.6) and 0.4 (12.4) ng m–3 respectively; for static samples the equivalent values were 0.2 (3.7) and 0.1 (1.4) ng m–3. Where unequivocal sample descriptors were provided with samples, results were categorised to activities/areas. Medians and 90th percentiles in these categories suggest that staff undertaking cleaning out, dumping of soiled bedding and cleaning cages can still have very substantial potential exposures in some facilities. The move to filtered cages appears to reduce general exposure, but filter changing and/or cleaning can lead to high exposures. In some facilities, animal receipt can cause significant exposures, as well as activities such as bleeding, culling and dosing; all activities involving the handling of animals outside of cages. We believe that the data presented may help those using air measurements in such facilities to improve their control of exposure to such aeroallergens, and thus reduce the risk of both sensitisation and subsequent allergic health problems, including the development of allergic asthma.


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    [1] Home Office (2015) Annual Statistics of Scientific Procedures on Living Animals Great Britain 2014. In: Home Office, editor. London: Controller of Her Majesty's Stationery Office, 1–62.
    [2] Robert KB (2001) Mechanism and epidemiology of laboratory animal allergy. Ilar J 42: 4–11. doi: 10.1093/ilar.42.1.4
    [3] Muzembo BA, Eitoku M, Inaoka Y, et al. (2014) Prevalence of occupational allergy in medical researchers exposed to laboratory animals. Ind Health 52: 256–261. doi: 10.2486/indhealth.2012-0155
    [4] Kampitak T, Betschel SD (2016) Anaphylaxis in laboratory workers because of rodent handling: two case reports. J Occup Health 58: 381–383. doi: 10.1539/joh.16-0053-CS
    [5] Baur X, Bakehe P (2014) Allergens causing occupational asthma: an evidence-based evaluation of the literature. Int Arch Occ Env Hea 87: 339–363. doi: 10.1007/s00420-013-0866-9
    [6] Draper A, Newman TA, Cullinan P (2003) Estimating the incidence of occupational asthma andrhinitis from laboratory animal allergens in the UK, 1999–2000. Occup Environ Med 60: 604–605. doi: 10.1136/oem.60.8.604
    [7] The Health and Occupation Reporting network UoM THORR06. Occupational asthma: numbers of diagnosis in which particular causative substances were identified, 2016. Available from: http://www.hse.gov.uk/statistics/tables/thorr06.xlsx.
    [8] Zahradnik E, Raulf M (2016) Allergens in laboratory animal facilities. Allergologie 39: 86–95. doi: 10.5414/ALX01817
    [9] Hollander A, Thissen J, Doekes G, et al. (1999) Comparison of methods to assess airborne rat and mouse allergen levels. I. Analysis of air samples. Allergy 54: 142–149.
    [10] Renström A, Gordon S, Hollander A, et al. (1999) Comparison of methods to assess airborne rat and mouse allergen levels. II. Factors influencing antigen detection. Allergy 54: 150–157.
    [11] Feary J, Cullinan P (2016) Laboratory animal allergy: a new world. Curr Opin Allergy Clin Immunol 16: 107–112. doi: 10.1097/ACI.0000000000000256
    [12] Heederik D, Venables KM, Malmberg P, et al. (1999) Exposure-response relationships for work-related sensitization in workers exposed to rat urinary allergens: results from a pooled study. J Allergy Clin Immunol 103: 678–684. doi: 10.1016/S0091-6749(99)70242-3
    [13] Jones M, Schofield S, Jeal H, et al. (2014) Respiratory protective equipment reduces occurrence of sensitization to laboratory animals. Occup Med 64: 104–108. doi: 10.1093/occmed/kqt144
    [14] Simoneti C, Freitas A, Rodrigues BM, et al. (2016) Study of risk factors for atopic sensitization, asthma, and bronchial hyperresponsiveness in animal laboratory workers. J Occup Health 58: 7–15. doi: 10.1539/joh.15-0045-OA
    [15] Health and Safety Executive (2005) EH40/2005. Occupational exposure limits 2005. Sudbury, Suffolk: HSE Books.
    [16] Canizales J, Jones M, Semple S, et al. (2015) To detemine mus m 1 personal exposure in laboratory animal workers where mice are housed in open cages and individually ventilated cages. Neurol Med-Chir 48: PA4271.
    [17] Jones MG (2008) Exposure-response in occupational allergy. Curr Opin Allergy Clin Immunol 8: 110–114. doi: 10.1097/ACI.0b013e3282f4b5f1
    [18] Liccardi G, Passalacqua G, Salzillo A, et al. (2011) Is sensitization to furry animals an independent allergic phenotype in nonoccupationally exposed individuals? J Invest Allerg Clin 21: 137–141.
    [19] Cocker J, Jones K (2017) Biological monitoring without limits. Ann Work Expo Health: 1–5.
    [20] Jones M (2015) Laboratory animal allergy in the modern era. Curr Allergy Asthma Rep 15: 73. doi: 10.1007/s11882-015-0575-4
    [21] Feistenauer S, Sander I, Schmidt J, et al. (2014) Influence of 5 different caging types and the use of cage-changing stations on mouse allergen exposure. J Am Assoc Lab Anim Sci 53: 356–363.
    [22] Thulin H, Björkdahl M, Karlsson A, et al. (2002) Reduction of exposure to laboratory animal allergens in a research laboratory. Ann Occup Hyg 46: 61–68.
    [23] Renstrom A, Bjoring G, Hoglund A (2001) Evaluation of individually ventilated cage systems for for laboratory rodents: occupational health aspects. Lab Anim 35: 42–50. doi: 10.1258/0023677011911363
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