IGHE and asthma: Regarding the latter, asthma severity has been shown to be related to Ascaris IgE levels, which correlate with mite‐specific IgE 39, cross‐reactivity has been demonstrated for selected Ascaris and mite antigens 40, and immunization of rabbits with Ascaris antigens induces IgE which cross‐reacts with house dust mite 41.