Effect of a second bloodmeal on the oesophagus colonization by Leishmania mexicana complex in Lutzomyia evansi (Diptera: Psychodidae)

Effect of a second bloodmeal on the oesophagus colonization by Leishmania mexicana complex in Lutzomyia evansi (Diptera: Psychodidae)

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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 Lighters infection susceptibility of this sand fly species, which is Tools 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.