Objective—To determine the concentration of house
dust mite (HDM) allergens, Der f 1 and group 2, on
the skin and hair of dogs and whether associations
exist between the presence of Der f 1 and group 2
allergens on the skin and hair of dogs and household
and dog characteristics.
Animals—63 pet dogs from 50 homes.
Procedure—Dogs were weighed and body surface
area in square meters was determined. Skin and hair
samples were obtained by vacuuming dogs.
Collected dust was analyzed by use of standard
Results—HDM allergen was detected in 21 of 59
skin and hair samples. Presence of group 2 allergen
on skin and hair of dogs was significantly associated
with long hair, compared with short or medium length
hair. Median house dust sample concentrations of
Der f 1 and group 2 allergens were high in homes
with dogs that had skin and hair samples that were
positive for Der f 1 and group 2 allergens. Dogs with
skin and hair samples that were positive for Der f 1
and group 2 allergens resided in homes with a high
number of house dust samples that were positive for
Der f 1, group 2, or both allergens and in homes with
a mean house dust sample allergen concentration of
≥ 2 µg/g of dust.
Conclusions and Clinical Relevance—Associations
exist between environmental HDM allergen concentrations
and HDM allergens on the skin and hair samples
of dogs. Environmental allergen load is a major
factor in accumulation of allergens on the skin and
hair of dogs. (Am J Vet Res 2005;66:143–149)