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[Diphtheria in a highly immunized population].

Although diphtheria vaccination is routine world-wide, outbreaks of the disease continue to occur in supposedly vaccinated populations. The incidence of diphtheria in Israel is very low, with only 3 cases reported in the past 24 years (all in unvaccinated children). In 2 of the 3 an asymptomatic carrier was identified among the patients' close contacts, presumable the source of the infection. We describe a recent case of diphtheria. It is important for physicians to be aware of the possibility of diphtheria occurring despite the high rate of vaccination in our population.