Complex ecological interactions across a focus of cutaneous leishmaniasis in Eastern Colombia: Novel description of Leishmania species, hosts and phlebotomine fauna: Ecological of cutaneous Leishmaniasis

Claudia M. Sandoval-Ramírez, Carolina Hernández, Aníbal A. Teherán, Reinaldo Gutierrez-Marin, Ruth A. Martínez-Vega, Duvan Morales, Richard Hoyos-Lopez, Astrid Araque-Mogollón, Juan David Ramírez

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Abstract

This study aimed to analyse the patterns of diversity, blood sources and Leishmania species of phlebotomines in a focus of cutaneous leishmaniasis in Arboledas, Eastern Colombia. In total, 1729 phlebotomines were captured in two localities (62.3% Siravita and 37.7% Cinera) and five environments of Norte de Santander. We identified 18 species of phlebotomines: Pintomyia ovallesi (29.8%), Psychodopygus davisi (20.3%), Pi. spinicrassa (18.5%) and Lutzomyia gomezi (15.8%) showed the highest abundance. Species diversities were compared between Cinera (15.00) and Siravita (20.00) and among five microenvironments: forest remnants (19.49), coffee plantations (12.5), grassland (12.99), cane plantations (11.66) and citrus plantations (12.22). Leishmania DNA was detected in 5.8% (80/1380) of females, corresponding mainly to Pi. ovallesi (22/80; 27.2%), Lu. gomezi (17/80; 21.3%) and Pi. spinicrassa (11/80; 13.8%). Leishmania species were 63.1% L. braziliensis, 18.5% L. panamensis, 13.2% L. infantum and 6.1% L. amazonensis. The most frequent feeding sources were Homo sapiens (50%), Bos taurus (13.8%) and Canis lupus familiaris (10.3%). This focus of cutaneous leishmaniasis has a high diversity of Leishmania-carrying phlebotomines that feed on domestic animals. The transmission of leishmaniasis to human hosts was mainly associated with Lu. gomezi, Pi. ovallesi and L. braziliensis.

Translated title of the contributionInteracciones ecológicas complejas en un foco de leishmaniasis cutánea en el este de Colombia: Novedosa descripción de las especies de Leishmania, los hospederos y la fauna de flebótomos: Ecología de la leishmaniasis cutánea
Original languageEnglish (US)
Article number200266
JournalRoyal Society Open Science
Volume7
Issue number7
DOIs
StatePublished - Jul 8 2020

All Science Journal Classification (ASJC) codes

  • General

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