Investigations of allergen-containing dust samples from the interior of the house

Using ACAREX test, it is straightforward to determine the allergen-containing excreta of housedust mites in dust samples and to detect the source of a contamination. Investigation of the antigen content by RAST inhibition shows that there is correlation between guanine and allergen content in a dust sample. There is no direct relation with the number of live (or dead) housedust mites, nor is this to be expected.