This paper presents an epidemiological model for typhoid fever epidemics or paratyphoid diseases with an enteric course, as well as a deterministic approach for the quantitative representation of this model. The model has been tested against one typhoid and two paratyphoid epidemics which occurred in the Federal Republic of Germany. It was possible to simulate the course of these epidemics with sufficient precision, and to obtain information on the effects of various interventions (e.g. oral vaccination or hygiene measures).

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