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Natural malaria infection in anophelines vectors and their incrimination in local malaria transmission in Darién, Panama

Torres-Cosme, Rolando ; Rigg, Chystrie ; Santamaría, Ana María ; Vásquez, Vanessa ; Victoria, Carlos ; Ramirez, José Luis ; Calzada, José E ; Cáceres Carrera, Lorenzo Lanz-Mendoza, Humberto

PloS one, 2021-05, Vol.16 (5), p.e0250059-e0250059 [Periódico revisado por pares]

United States: Public Library of Science

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  • Título:
    Natural malaria infection in anophelines vectors and their incrimination in local malaria transmission in Darién, Panama
  • Autor: Torres-Cosme, Rolando ; Rigg, Chystrie ; Santamaría, Ana María ; Vásquez, Vanessa ; Victoria, Carlos ; Ramirez, José Luis ; Calzada, José E ; Cáceres Carrera, Lorenzo
  • Lanz-Mendoza, Humberto
  • Assuntos: Anopheles ; Biology and Life Sciences ; Causes of ; Disease transmission ; Distribution ; Forecasts and trends ; Health aspects ; Malaria ; Medicine and Health Sciences ; People and places
  • É parte de: PloS one, 2021-05, Vol.16 (5), p.e0250059-e0250059
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Competing Interests: The authors declare that they have no competing interests. LC and JEC are members of the Sistema Nacional de Investigación (SNI), SENACYT, Panama. Any opinions, findings, conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture. The mention of firm names or trade products does not imply that they are endorsed or recommended by the U.S. Department of Agriculture over other firms or similar products not mentioned; the USDA is an equal opportunity employer. This does not alter our adherence to PLOS ONE policies on sharing data and materials.
  • Descrição: More than 85% of the malaria cases in Panama occur in poor, rural and indigenous regions like Darien Province. Vector diversity, infection rate and spatial distribution are important entomological parameters of malaria transmission dynamics. Their understanding is crucial for the development of effective disease control strategies. The objective of this study was to determine the composition of Anopheles species, their natural infection rate and their geographic distribution to better understand the malaria transmission dynamics in Darién, Panama. Anophelines mosquitoes were captured during the rainy and dry season of 2016. We selected five communities where adult anophelines were collected using CDC light-traps, and through protective human-baited traps. Detection of natural infection and Plasmodium genotype were detected via nested PCR through the amplification of ssrRNA and the circumsporozoite protein gene (csp), respectively. A total of 1,063 mosquitoes were collected mosquitoes were collected for the detection of natural infection with Plasmodium spp. Nine Anophelines species were identified, with the predominant species being: An. (Nys.) darlingi (45.0%) and An. (Nys.) albimanus (42.6%). Natural infection in An. (Nys.) albimanus with P. vivax was detected in one mosquito pool from the community Pueblo Tortuga (0.6%), three from Marraganti (1.7%), two from Bajo Chiquito (1.1%) and three pools from Alto Playona 3 (1.7%). For An. (Nys.) darlingi mosquitoes, we detected seven positive pools from the community Bajo Chiquito (4.0%), two pools from Marraganti (1.1%) and two pools from Alto Playona (1.1%). The P. vivax allelic variant VK210 was detected in infected mosquitoes. The results from this study provide new information on the transmission dynamics associated with anophelines vectors in the Darién region. This is the first report of natural P. vivax infection in An. (Nys.) darlingi and its incrimination as a potential malaria vector in this region of Panama. Additional studies are necessary to expand our knowledge and determine crucial parameters in malaria transmission in Darién, which in turn will aid the National Malaria Program in attaining an adequate malaria control strategy towards malaria elimination.
  • Editor: United States: Public Library of Science
  • Idioma: Inglês
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