Overall, since atopy was equally as common among the patients as in the general population, the SPTs for Aspergillus fumigatus were negative, the specific IgE levels of MD-associated fungi were low, and there were no differences in sensitization to common allergens or MD exposure-associated fungi between the asthma patients and the non-asthmatics, routine testing for possible sensitization among these patients is not useful. Here, IGHE is linked to asthma.