title: Cross-reactivity between environmental agents and HLA-B2.
mesh_terms: D000942:Antigens, Bacterial / Q000276:immunology; D003429:Cross Reactions; D005802:Genes, MHC Class II; D008040:Genetic Linkage; D006680:HLA Antigens / Q000235:genetics*; D006801:Humans; D007709:Klebsiella / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial; D006680:HLA Antigens