Canine atopic disease: investigations of eosinophils and the nasal mucosa

Blood eosinophil counts were comparable in dogs with and without canine atopic disease. Eosinophils were not observed in the nasal smears of any of the dogs studied. Of 46 dogs with atopic disease, a significant increase (P less than 0.001) in nasal airway resistance was observed in 2 dogs after nasal provocation with nebulized allergens of grasses and in 1 dog after provocation with summer weed extracts.