[Ecology of a focus of cutaneous leishmaniasis in the area of Thies, Senegal, West Africa. 4. Spontaneous infestation and biology of Phlebotomus duboscqi Neveu-Lemaire 1906].

Following their epidemiological investigation on the cutaneous leishmaniasis focus of Keur Moussa, the authors study the sandfly fauna. The species Phlebotomus duboscqi is abundant (1532 samples out of 8411 sandflies collected between December 1976 and June 1979) and located inside the rodent burrows which have been found to be their larval breeding sites. Five P.

[Ecology of a focus of cutaneous leishmaniasis in the Thies region (Senegal, West Africa). 2. Epidemiological and clinical peculiarities of the human disease].

During their epidemiological survey of a cutaneous leishmaniasis focus, the authors study the epidemiological and clinical aspects of 60 proven human cases observed in the studied area (Thies region). The disease can occur at any age but is more frequently seen in the pre-adolescent (10-15 years), adolescent (15-20 years) and adult (20-40 years) age classes. During the year, 76.

[Ecology of a cutaneous leishmaniasis focus in the Thies region (Senegal, western Africa). I. Recall of the cutaneous leishmaniasis status in Senegal and presentation of the studied area].

Opening an epidemiological survey of a focus of cutaneous leishmaniasis in the Thies region (Senegal), the authors present a short historical report on the disease situation in the country. They then describe the ecological characters of the studied area.

[Spontaneous infestation of Phlebotomus dubosqui by promastigotes of Leishmania in Senegal].

An epidemiological survey of cutaneous leishmaniasis in Senegal revealed the presence of numerous Phlebotomus duboscqi in the entrances of rodent burrows. Two P. duboscqi out of 45 females dissected showed infection of the gut by promastigotes which could be cultured on NNN medium.

[Value of Cricetomys gambianus in the study of experimental trypanosomiasis from Trypanosoma gambiense. Methods for mass preparation of antigen and purification of serum exoantigen].

Methods for mass preparation of crude antigen and exoantigen of Trypanosoma gambiense from experimentally infected Cricetomys gambianus are described. The size of this animal and the hyperparasitism obtained make it a remarkable source of trypanosomian antigens.

[Experimental schistosomiasis. II. Infection of Biophalaria glabrata by 2 miracidia of Schistosoma mansoni].

The authors have infected 127 B. glabrata by 2 miracidia of S. mansoni, either on the Same day, or introducing a second miracidium after 3, 7 and 16 days.

[Experimental Schistosomiases. I. Study of S. mansoni fecondity as regards to its adaptation to different Biomphalaria glabrata strains (author's transl)].

We compared the infestation of different strains of B. glabrata from Brasil (Recife). Guadeloupe, Martinique and Porto-Rico with 6 to 8 miracidia of S.