[Contribution on household dust allergy (author's transl)].

In 1970 the allergy out-patient department of the First Otolaryngological University Hospital of Vienna reported for the first time about the increasing significance of mould fungus allergies in the respiratory tract. RAST now makes in possible to analyze the indivudual fractions of a household dust sensitization by way of experiments. We have seen that in the case of positive RAST reactions to household dust, which is a mixed antigen unspecific as such, evidence can be found for at least one of the antigens "mould fungus", "household dust mite", or "animal hair" in positive RAST categories. Among the 107 cases of the RAST categories 2 und 3 with respect to household dust (h3) a household-dust mite sensitization was evidenced in 88 percent, the respective figures for animal hair sensitization being 49 percent and for mould fungus sensitization 43 percent.