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

Memórias do Instituto Oswaldo Cruz

Alejandra Vivenes²  Milagros Oviedo²  Julio César Márquez²  James Montoya-lerma¹ 

[1] ,Centro de Investigaciones J. W. TorrealbaTrujillo,Venezuela

关键词: leishmaniasis;    parasite development;    refeeding;    sand flies;    Lutzomyia evansi;   

DOI  :  10.1590/S0074-02762001000300001

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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