Effect of a Second Bloodmeal on the Oesophagus Colonization by Leishmania mexicana Complex in Lutzomyia evansi (Diptera: Psychodidae)

Migration and colonization of the oesophagus by Leishmania mexicana parasites were enhanced after digestion of a second bloodmeal intake in Lutzomyia evansi. This event has epidemiological significance since it affects the infection susceptibility of this sand fly species, which is a proven vector o...

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Veröffentlicht in:	Memórias do Instituto Oswaldo Cruz 2001-04, Vol.96 (3), p.281-283
Hauptverfasser:	Vivenes, A, Oviedo, M, Márquez, J C, Montoya-Lerma, J
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals blood meals Cricetinae Digestive System - parasitology Esophagus - parasitology Feeding Behavior Female Host-Parasite Interactions Insect Vectors - parasitology Leishmania mexicana Leishmania mexicana - physiology leishmaniasis leishmaniasis, parasite development, refeeding, sand flies, Lutzomyia evansi Lutzomyia evansi Mesocricetus parasite development PARASITOLOGY Psychodidae Psychodidae - parasitology refeeding sand flies Time Factors TROPICAL MEDICINE
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Beschreibung
Zusammenfassung:	Migration and colonization of the oesophagus by Leishmania mexicana parasites were enhanced after digestion of a second bloodmeal intake in Lutzomyia evansi. This event has epidemiological significance since it affects the infection susceptibility of this sand fly species, which is a proven vector of L. chagasi in Colombian and Venezuelan visceral leishmaniasis foci. Also, it may explain the host seeking behaviour displayed by some partially bloodfed flies found inside houses.
ISSN:	1678-8060 0074-0276 0074-0276 1678-8060
DOI:	10.1590/S0074-02762001000300001