Hypersensitivity to bacteria.
D001419:Bacteria / Q000276:immunology*; D006801:Humans; D006967:Hypersensitivity / Q000209:etiology* / Q000276:immunology; D012867:Skin / Q000276:immunology; D012871:Skin Diseases / Q000209:etiology* / Q000276:immunology; D012882:Skin Tests