Phlebotomine vector ecology in the domestic transmission of American cutaneous leishmaniasis in Chaparral, Colombia

Cristina Ferro, Dairo Marín, Rafael Góngora, María C. Carrasquilla, Jorge E. Trujillo, Norma K. Rueda, Jaime Marín, Carlos Valderrama-Ardila, Neal Alexander, Mauricio Pérez, Leonard E. Munstermann, Clara B. Ocampo

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Phlebotomine vector ecology was studied in the largest recorded outbreak of American cutaneous leishmaniasis in Colombia in 2004. In two rural townships that had experienced contrasting patterns of case incidence, this study evaluated phlebotomine species composition, seasonal abundance, nocturnal activity, blood source, prevalence of Leishmania infection, and species identification. CDC miniature light traps were used to trap the phlebotomines. Traps were set indoors, peridomestically, and in woodlands. Natural infection was determined in pools by polymerase chain reaction-Southern blot, and blood sources and species identification were determined by sequencing. Large differences were observed in population abundance between the two townships evaluated. Lutzomyia longiflocosa was the most abundant species (83.1%). Abundance was higher during months with lower precipitation. Nocturnal activity was associated with human domestic activity. Blood sources identified were mainly human (85%). A high prevalence of infection was found in L. longiflocosa indoors (2.7%) and the peridomestic setting (2.5%). L. longiflocosa was responsible for domestic transmission in Chaparral.

Original languageEnglish (US)
Pages (from-to)847-856
Number of pages10
JournalAmerican Journal of Tropical Medicine and Hygiene
Volume85
Issue number5
DOIs
StatePublished - Nov 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Parasitology
  • Virology
  • Infectious Diseases

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