RT Book, Section A1 Abreo, Andrew A1 Wiedermann, Bernhard L. A2 Kline, Mark W. SR Print(0) ID 1182935685 T1 Diphtheria T2 Rudolph's Pediatrics, 23e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259588594 LK accesspediatrics.mhmedical.com/content.aspx?aid=1182935685 RD 2024/04/25 AB Diphtheria is an acute infection caused by Corynebacterium diphtheriae. The incidence of diphtheria is inversely related to the percentage of immune individuals in an area, and it remains endemic in countries without effective immunization programs. The incidence of diphtheria in the United States has declined dramatically since aggressive immunization efforts were begun in 1980. Concurrently, diphtheria shifted from a disease of children to a disease of adults with waning immunity. The potential for outbreaks continues, however, if segments of a community are not immunized.