title: A diphtheria outbreak in Chicago.
mesh_terms: D000293:Adolescent; D002641:Chicago; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D004165:Diphtheria / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology* / Q000276:immunology; D004917:Erythromycin / Q000627:therapeutic use; D006801:Humans; D007223:Infant; D007244:Infectious Mononucleosis / Q000175:diagnosis; D008875:Middle Aged
chemical_list: D004917:Erythromycin