Abstract

ACOSTA, Luz Adriana et al. Expansion of the distribution of Lutzomyia longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae) in the department of Caldas: Increased risk of visceral leishmaniasis. Biomédica [online]. 2013, vol.33, n.2, pp.319-325. ISSN 0120-4157.  https://doi.org/10.7705/biomedica.v33i2.762.

Introduction: Diverse taxonomical and molecular studies suggest that Lutzomyia longipalpis , main vector of visceral leishmaniasis in Latin America, is a complex of species widely distributed throughout the continent and adapted to different habitats. Objective: To carry out entomological surveillance in the area of influence of the Miel I Hydroelectric Plant. Materials and methods: Adhesive traps were used in a transect covering an area of approximately 400 km for the capture of insects, which were then identified using the Young and Duncan taxonomical key. Results: This study reports the presence of Lutzomyia longipalpis in the municipalities of Norcasia at an altitude of 392 masl, and in Marquetalia at 1,387 masl. Conclusions: We suggest that the increase in the geographical and altitudinal distribution could be related to the existence of the Lu. longipalpis species complex, or to environmental factors, such as the rise in temperature due to global climate changes, which create the establishment of Lu. longipalpis , generating a new epidemiological risk for new visceral leishmaniasis foci in the country.

Keywords : leishmaniasis; Lutzomyia; global warming; risk zone; epidemiological surveillance.

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