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vol.77 issue4Experimental basis for the identification of Leishmania spp. of America by morphometry of amastigotesMethodological assay for research of reservoirs of Leishmania spp. in the Venezuelan Andes author indexsubject indexarticles search
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Memórias do Instituto Oswaldo Cruz

Print version ISSN 0074-0276On-line version ISSN 1678-8060

Mem. Inst. Oswaldo Cruz vol.77 no.4 Rio de Janeiro Oct./Dec. 1982 

Factores dermicos que condicionan la infeccion de Lutzomyia townsendi (Ortiz, 1959) por Leishmania spp. de Venezuela

Maritza Carnevali1 

J. V. Scorza2 

ULA, Facultad de Farmacia, Mérida, Venezuela

ULA, Facultad de Ciencías, Mérida, Venezuela


Se estudia la susceptibilidad de Lutzomyia townsendi a la infección con Leishmania spp. sobre lesiones experimentales de hamsteres. Se estudia la frecuencia y distribución de los amastigotos en la dermis, relacionándola con la profundidad que alcanza el estilete bucal del insecto. Una correlación positiva, con significante coeficiente de correlación, se establece entre la frecuencia de los parásitos a una profundidad de 100-150 nm en la dermis y el éxito de la infección de los flebótomos.


The susceptibility of Lutzomyia townsendi to infection with amastigotes of Leishmania spp. from experimental lesions in hamsters is studied. A good correlation is found when the number of infected sandflies are compared with the distribution and density of parasites in the dermis, taking into account the size of the fascicle, particularly the length of labrun and dental depth in maxillae. Considerations are made on the susceptibilities of some anthropophilic sandflies from America that are considered as good vectors.


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