[Ecology of the focus of cutaneous leishmaniasis in the region of Thies (Senegal, West Africa). 3. Evaluation of the endemicity in the human population].

During the epidemiological survey of the cutaneous leishmaniasis focus of Keur-Moussa, the authors try to evaluate the disease frequency by using various epidemiological indices. The incidence showed variations from year to year (from 3.31 p. 1,000 in 1976 to 0.26 p. 1,000 in 1978). A 12.4% prevalence rate was established from a systemic investigation in January 1978. During the same survey, 57.8% of the population had a positive leishmanin skin test. The value and significance of these different rates are then discussed.