Sand flies naturally infected by Leishmania (L.) mexicana in the peri-urban area of Chetumal city, Quintana Roo, Mexico
Por:
Sánchez-García L., Berzunza-Cruz M., Becker-Fauser I., Rebollar-Téllez E.A.
Publicada:
1 jun 2010
Resumen:
The surveillance of prevalent Leishmania sand fly vectors is an important issue for epidemiological studies in populated areas where leishmaniasis is endemic. In this study, we collected sand flies from a pen-urban area in the southeast of Mexico. Natural infection with Leishmania (L.) mexicana was studied by PCR using a Leishmania internal transcribed spacer of the ribosomal RNA gene for amplification. Infected Lutzomyia olmeca olmeca, Lu. shannoni and Lu. cruciata sand flies were collected mainly during the high transmission season (November to March), coinciding with the highest sand fly densities. Additionally, positive specimens of Lu. olmeca olmeca were also captured during July and August. The infected sand flies were from primary forest (subperennial forest) and secondary forest (18-25 years old and 10-15 years old respectively). Sand flies collected with Disney and Shannon traps were the ones found to be infected with L. (L.) mexicana. We conclude that the high-risk period in
Filiaciones:
Sánchez-García L.:
Univ Nacl Autonoma Mexico, Fac Med, Dept Expt Med, Hosp Gen Mexico, Mexico City 06726, DF, Mexico
Berzunza-Cruz M.:
Univ Nacl Autonoma Mexico, Fac Med, Dept Expt Med, Hosp Gen Mexico, Mexico City 06726, DF, Mexico
Becker-Fauser I.:
Univ Nacl Autonoma Mexico, Fac Med, Dept Expt Med, Hosp Gen Mexico, Mexico City 06726, DF, Mexico
Rebollar-Téllez E.A.:
Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas, Departamento de Zoología de Invertebrados, Laboratorio de Entomología Médica, Ciudad Universitaria, Pedro de Alba s/n, San Nicolás de los Garza, Nuevo León, Mexico
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