83(5) pg 240

Title: 
Insect bite hypersensitivity in Belgian warmblood horses: prevalence and risk factors
Author(s): 
L.M. PEETERS, S. JANSSENS, A. COUSSÉ, N. BUYS
Abstract: 

Insect bite hypersensitivity (IBH) is an allergic reaction to the bites of certain Culicoides spp.or other insects. In this study, risk factors for IBH in Belgian warmblood horses stabled or grazingin Flanders (Belgium) were investigated. IBH records (n=3409) were collected in 2009 and2011 using a questionnaire and face-to-face interviews. The classification of IBH-affected versusunaffected horses was based on the owner’s statement, and the reported IBH lifetime prevalencewas 10%. Thirty eight percent of IBH affected horses had no clinical symptoms at the time ofquestioning. When only the presence or absence of clinical symptoms at the time of questioningwas taken into account, the prevalence of IBH symptoms was 6.2%. Seventy percent of IBH-affectedhorses were treated with IBH measures to reduce clinical symptoms. Model selection wasbased on backwards elimination in a logistic regression framework starting with 17 factors. Theage of the horse, vegetation of surrounding pasture and stud size were found to be significantlyassociated with the self-reported IBH status.

Full text: 
pp 240-249
Original article(s)