INTER-EPIDEMIC SUPERVISION OF THE LEISHMA NIASIS FOCUS OF KEUR-MOUSSA(THIES, SENEGAL)

A supervision of the focus of human cutaneous leishmaniasis of Keur Mo ussa has been carried out in 1988-1989 and in 1991-1992. Among the 13 species gathering the 10, 144 phlebotomine sandflies traped, two belon g to genus Phlebotomus, the others to genus Sergentomyia. Phlebotomus duboscqi, that has been found out by Deded et al. in 1980 as the vecto r of this leishmaniasis in Senegal, is the most represented species af ter Sergentomyia schwetzi, with respectively 32.3 and 28.5% of the fau na during these two periods. It is twice more abundant and frequent in the monastery area than the religious one. This difference may be due to the better micro-climatic conditions, the abundance of rodents and the human proximity. After the rainy saison that influence a lot P. d uboscqi's activity, the density of phlebotomine sandflies makes a prog ressive raise, as well as the temperature and humidity, to reach two m axima in April-May and July-August. Parasitological studies on females of phlebotomine sandflies and rodents Arvicanthis niloticus, Mastomys erythroleucus and Cricetomys gambianus are negative. This focus seems to be again in an inter-epidemic phase.