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HAEMENTERIA LUTZI PINTO, 1920 (HIRUDINEA: GLOSSIPHONIIDAE) AS A PUTATIVE VECTOR OF TRYPANOSOMA EVANSI (KINETOPLASTIDA: TRYPANOSOMATIDAE) IN THE PANTANAL MATOGROSSENSE (MS, BRAZIL)
Haementeria lutzi
Mechanical transmission
Experimental infection
Leeches
Autor
Afiliación
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Doenças Parasitárias. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Proteínas e Peptídeos. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Doenças Parasitárias. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Proteínas e Peptídeos. Rio de Janeiro, RJ, Brasil.
Resumen en ingles
In the present study, it was shown under experimental conditions that Trypanosoma evansi could be mechanically
transmitted to Rattus norvegicus by leeches (Haementeria lutzi). Additionally, we also described some aspects related
to the behavior of the Trypanosoma evansi in the leeches after an infective blood feeding, as follows: a) 10 minutes
after the parasites were ingested; they promptly progressed to the coelomic cavity. b) Approximately, from 10 to 30
minutes inside the gut, rounded and dividing forms together with stumpy and slender trypomastigotes showed a random
dispersion. c) 24 hours after, the trypanosomes also invaded both, the salivary glands as well as the proboscis cells. Our
results suggest that leeches of the species Haementeria lutzi could have some role as a probable alternative vector of
Trypanosoma evansi at wetlands in Brazil.
Palabras clave en ingles
Trypanosoma evansiHaementeria lutzi
Mechanical transmission
Experimental infection
Leeches
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