Researchers have identified shared genetic loci for asthma, allergic rhinitis, and pollinosis in East Asians. Studies have also found connections between these conditions and other diseases, including keratoconus, nasal polyposis, atopic dermatitis, and gastro-esophageal reflux disease, through genomic analyses. The findings suggest a complex genetic architecture underlying these conditions, with possible overlaps in immunological pathways and tissues.