M. LIMA* 1 , V. CUNHA2 , M. FARIAS3
This study aimed to evaluate accuracy parameters of a polyclonal and a FceR1-alfa serological test, compared to IDT, for identification of sensitivity to Dermatophagoides pteronyssinus (DP), Dermatophagoides farinae (DF) and Blomia tropicalis (BT). This study enrolled 19 healthy dogs with negative IDT and 20 atopic dogs with positive IDTand no other pruritic dermatoses, that fulfilled six of eight clinical features of canine AD, as described by Favrot et al, after exclusively feeding a novel protein diet for eight weeks. Serological testing was performed in all 39 dogs. When considered positive result to at least one of the tested mites (overall rating), polyclonal serological test showed accuracy=0,49, sensitivity (S)=74%, specificity (E)=26%. When considering results of each mite tested individually, this test showed for DP: accuracy=0,58, S=36%, E=74%; for DF: accuracy=0,46, S=78%, E= 32% and for BT:accuracy=0,53, S= 55%, E= 53%. FceR1-alpha test showed in overall rating: accuracy=0,46, S=65%, E=26%; in mite rating, for DP:accuracy=0,58, S=57%, E=58%; for DF: accuracy=0,50, S=44%, E=53% and for BT: accuracy=0,67, S=45%, E= 79%.