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 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.
Vivenes
A
A
Centro de Investigaciones J. W. Torrealba, Trujillo, Venezuela.
Oviedo
M
M
Márquez
J C
JC
Montoya-Lerma
J
J
D000818:Animals; D006224:Cricetinae; D004064:Digestive System / Q000469:parasitology*; D004947:Esophagus / Q000469:parasitology; D005247:Feeding Behavior; D005260:Female; D006790:Host-Parasite Interactions; D007303:Insect Vectors / Q000469:parasitology*; D007894:Leishmania mexicana / Q000502:physiology*; D008647:Mesocricetus; D011576:Psychodidae / Q000469:parasitology*; D013997:Time Factors