Knowing eosinophils count is our
What's yours?

Knowing eosinophils count is our
What's yours?

At GSK, we believe eosinophils count for a lot. They play a role not only in disease, but also in health—and we are committed to better understanding their potential impact on patients’ lives.

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EOS counts in health

Eosinophils may contribute to overall
health and immunoregulation1-3

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EOS counts in disease

Eosinophils contribute to inflammation
and organ damage or dysfunction2,3 

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EOS counts in diagnosis
and treatment decisions

Blood and/or tissue eosinophils can
serve as an important biomarker in
clinical practice4-11 

Get the latest eosinophilosophy updates


  1. Marichal T, Mesnil C, Bureau F. Homeostatic eosinophils: characteristics and functions. Front Med (Lausanne). 2017;4:101.
  2. Travers J, Rothenberg ME. Eosinophils in mucosal immune responses. Mucosal Immunol. 2015;8(3):464-475. 
  3. Klion AD, Ackerman SJ, Bochner BS. Contributions of eosinophils to human health and disease. Annu Rev Pathol. 2020;15:179-209.
  4. Global Initiative for Asthma (GINA). Global strategy for asthma management and prevention. 2021 main report. Accessed June 6, 2021.
  5. Global Initiative for Chronic Obstructive Lung Disease (GOLD). Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease. 2021 report. Accessed June 6, 2021.
  6. Asano K, Hebisawa A, Ishiguro T, et al. New clinical diagnostic criteria for allergic bronchopulmonary aspergillosis/mycosis and its validation. J Allergy Clin Immunol. 2021;147(4):1261-1268.e5.
  7. Wechsler ME. Pulmonary eosinophilic syndromes. Immunol Allergy Clin North Am. 2007;27(3):477-492.
  8. Suzuki Y, Suda T. Eosinophilic pneumonia: A review of the previous literature, causes, diagnosis, and management. Allergol Int. 2019;68(4):413-419.
  9. Masi AT, Hunder GG, Lie JT, et al. The American College of Rheumatology 1990 criteria for the classification of Churg-Strauss syndrome (allergic granulomatosis and angiitis). Arthritis Rheum. 1990;33(8):1094-1100.
  10. Reed CC, Dellon ES. Eosinophilic esophagitis. Med Clin North Am. 2019;103(1):29-42.
  11. Valent P, Klion AD, Horny HP, et al. Contemporary consensus proposal on criteria and classification of eosinophilic disorders and related syndromes. J Allergy Clin Immunol. 2012;130(3):607-612.e9.