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Diversity and temporal distribution of sand flies in an endemic area of cutaneous leishmaniasis in Centre-West Colombia.
Posada-López, Laura; Galvis-Ovallos, Fredy; Vélez-Mira, Andrés; Vélez, Ivan D; Galati, Eunice A B.
Afiliación
  • Posada-López L; Department of Epidemiology, Faculty of Public Health, University of São Paulo, São Paulo, São Paulo, Brazil.
  • Galvis-Ovallos F; PECET (Program for the Study and Control of Tropical Diseases), Faculty of Medicine, University of Antioquia, Medellin, Colombia.
  • Vélez-Mira A; Department of Epidemiology, Faculty of Public Health, University of São Paulo, São Paulo, São Paulo, Brazil.
  • Vélez ID; PECET (Program for the Study and Control of Tropical Diseases), Faculty of Medicine, University of Antioquia, Medellin, Colombia.
  • Galati EAB; PECET (Program for the Study and Control of Tropical Diseases), Faculty of Medicine, University of Antioquia, Medellin, Colombia.
J Med Entomol ; 60(3): 527-534, 2023 05 12.
Article en En | MEDLINE | ID: mdl-37043628
The community structure of sand flies indicates the level of adaptation of vector species in a region, and in the context of vector management and control, this information allows for identifying the potential risks of pathogen transmission. This study aimed to analyze sand fly diversity and spatial-temporal distribution in an endemic area of cutaneous leishmaniasis. The study was carried out in the Carrizales hamlet (Caldas), between September 2019 and October 2021. The monthly distribution of sand fly species was evaluated through collections with CDC traps. Shannon and evenness indices were calculated and used to compare species frequencies at each house. The association between climatic variables and the frequency of sand flies was evaluated using Spearman's correlation. A total of 6,265 females and 1,958 males belonging to 23 species were found. Low diversity and evenness were observed, with the dominance of Nyssomyia yuilli yuilli (Young & Porter). Ecological and diversity indices did not reveal differences between the houses. The sand fly community was composed of 3 dominant species, Ny. yuilli yuilli, Psychodopygus ayrozai (Barretto & Coutinho), and Ps. panamensis (Shannon), representing 75.8% of the total catches. No statistical association was found between the absolute frequency of sand flies, rainfall, and temperature. The results show one dominant species, this fact has epidemiological relevance since density influences parasite-vector contact. The high densities of sand flies recorded in peri- and intradomiciliary areas highlight the necessity of periodic monitoring of vector populations and control activities to reduce the risk of Leishmania transmission in this endemic area.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Phlebotomus / Psychodidae / Leishmaniasis Cutánea Tipo de estudio: Prognostic_studies Límite: Animals País/Región como asunto: America do sul / Colombia Idioma: En Revista: J Med Entomol Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Phlebotomus / Psychodidae / Leishmaniasis Cutánea Tipo de estudio: Prognostic_studies Límite: Animals País/Región como asunto: America do sul / Colombia Idioma: En Revista: J Med Entomol Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido