Efficiency of different skin prick testing methods in the diagnosis of allergy to dog.

The study of 202 asthmatic children shows that prick testing with standardized dog allergen extract is very useful in the diagnosis of allergy to dog dander. A good correlation was demonstrated with clinical history, RAST and the provocation tests. The use of the histamine control system improves the specificity of the prick test when compared with the simple measuring of the mean wheal diameter. End-point titration of the skin prick reactivity did not further improve the specificity when compared with the histamine control system.