Comparative Review of Asthma in Farmers and Horses

M. Katie Sheats, Kaori U. Davis, Jill A. Poole

Research output: Contribution to journalReview articlepeer-review

8 Scopus citations


Purpose of Review: Farmers are routinely exposed to organic dusts and aeroallergens that can have adverse respiratory health effects including asthma. Horses are farm-reared large animals with similar exposures and can develop equine asthma syndrome (EAS). This review aims to compare the etiology, pathophysiology, and immunology of asthma in horses compared to farmers and highlights the horse as a potential translational animal model for organic dust-induced asthma in humans. Recent Findings: Severe EAS shares many clinical and pathological features with various phenotypes of human asthma including allergic, non-allergic, late onset, and severe asthma. EAS disease features include variable airflow obstruction, cough, airway hyperresponsiveness, airway inflammation/remodeling, neutrophilic infiltrates, excess mucus production, and chronic innate immune activation. Summary: Severe EAS is a naturally occurring and biologically relevant, translational animal disease model that could contribute to a more thorough understanding of the environmental and immunologic factors contributing to organic dust-induced asthma in humans.

Original languageEnglish (US)
Article number50
JournalCurrent allergy and asthma reports
Issue number11
StatePublished - Nov 1 2019


  • Bronchitis
  • Equine asthma syndrome
  • Innate immunity, neutrophilic asthma
  • Occupational asthma
  • Organic dust

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Pulmonary and Respiratory Medicine


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