title: Recent trends in diphtheria in the United States.
mesh_terms: D001741:Black or African American; D000367:Age Factors; D002353:Carrier State; D002648:Child; D003353:Corynebacterium diphtheriae / Q000302:isolation & purification; D004165:Diphtheria / Q000453:epidemiology* / Q000401:mortality; D004168:Diphtheria Toxoid; D005006:Ethnicity; D006801:Humans; D007198:Indians, North American; D012737:Sex Factors; D014481:United States
chemical_list: D004168:Diphtheria Toxoid