Revisión histórica de la distribución de Anopheles (Nyssorhynchus) darlingi (Diptera: culicidae) en la Amazonía peruana

Fernández, Roberto; Hubert, Vera; Calderon, G.

doi:10.17843/rpmesp.2014.312.52

Cited by 9 publications

(5 citation statements)

References 27 publications

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“…nuñeztovari, and Ny. albitarsis (Sinka et al, 2012;Conn et al, 2013;Fernández et al, 2014;Laporta et al, 2015;Ahumada et al, 2016) are all implicated as vectors of P. vivax (da Silva et al, 2006;Neves et al, 2013;Rios-Velasquez et al, 2013;Hurtado et al, 2018;Martins-Campos et al, 2018;Prussing et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Ookinete-Specific Genes and 18S SSU rRNA Evidenced in Plasmodium vivax Selection and Adaptation by Sympatric Vectors

González-Cerón¹,

Rodrı́guez²,

Ovilla-Muñoz³

et al. 2020

Front. Genet.

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In the southern Pacific coast of Chiapas, Mexico (SM), the two most abundant vector species, Nyssorhynchus albimanus and Anopheles pseudopunctipennis, were susceptible to different Plasmodium vivax Pvs25/28 haplotypes. To broaden our understanding of the existing P. vivax in the area, genes encoding proteins relevant for ookinete development and the 18S rRNA were studied. P. vivax infectivity (percentage of infected mosquitoes and oocyst numbers) was evaluated by simultaneously feeding infected blood samples from patients to Ny. albimanus and An. pseudopunctipennis female mosquitoes. Three infectivity patterns were identified: one group of parasites were more infective to An. pseudopunctipennis than to Ny. albimanus, another group was more infective to Ny. albimanus, while a third group infected both vectors similarly. In 29 parasite isolates, the molecular variations of ookinete-specific genes and the 18S rRNA-type S were analyzed. Using concatenated sequences, phylogenetic trees, and Structure analysis, parasite clustering within SM isolates and between these and those from other geographical origins were investigated. A ML phylogenetic tree resolved two parasite lineages: PvSM-A and PvSM-B. They were associated to a different 18S rRNA variant. PvSM-A parasites had 18S rRNA variant rV2 and correspond to parasites causing high oocyst infection in Ny. albimanus. A new ML tree and Structure analysis, both comprising global sequences, showed PvSM-A clustered with Latin American parasites. Meanwhile, all isolates of PvSM-B had 18S rRNA variant rV1 and remained as unique genetic cluster comprising two subgroups: PvSM-Ba, producing high infection in An. pseudopunctipennis, and PvSM-Bb, causing similar oocyst infection in both vector species. PvSM-A parasites were genetically similar to parasites from South America.Meanwhile, PvSM-B were exclusive to southern Mexico and share ancestry with Asian parasites. The results suggest that these lineages evolved separately, likely by geographic and vector restriction.

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Section: Discussionmentioning

confidence: 99%

Ookinete-Specific Genes and 18S SSU rRNA Evidenced in Plasmodium vivax Selection and Adaptation by Sympatric Vectors

González-Cerón¹,

Rodrı́guez²,

Ovilla-Muñoz³

et al. 2020

Front. Genet.

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“…En esa misma línea Diptera: Culicidae, 10,92% (38/348) de los vectores encontrados fue Anopheles sp., este vector esta asociado con la trasmisión del parásito de Plasmodium sp. causante de la malaria, la transmisión se da por medio de la picadura de una persona enferma y una persona sana, León et al, (2003) indican que el departamento de Madre de Dios es considerado cómo área de mediano riesgo para la transmisión de malaria por P. vivax y de bajo riesgo para la transmisión de malaria por P. falciparum, según el IPA, actualmente no hay estudios científicos sobre la diversidad de este vector en las zonas de estudio, sin embargo, en reportes de la sala situaciónal se evidenció el reporte de 235 casos de malaria en Cusco para 2017 (CDC, 2023).…”

Section: Discussionunclassified

Riesgo por entomofauna vectorial en áreas de ecoturismo en el Perú

Huamán Berrocal

2023

BMSA

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Peru is a megadiverse country that presents a great variety of natural and cultural manifestations in Section 2 of the South Interoceanic highway, where exposure to disease-transmitting vectors could be a public health problem. As an objective, it was proposed to determine the risk due to vector entomofauna in ecotourism areas in Peru, 2019. The study was descriptive-experimental, cross-sectional. As an instrument, a categorization system of tourist places, a tourist survey applied to 223 visitors and an entomological survey in seven (7) places along the route were applied. All the data was stored in a Microsoft Excel database and processed with Epidat 3.0, in order to know indices, percentages and frequencies. As a result, the weighting (Total Diversity x PCN) was 6.00 for the CAT. 1, 5.28 CAT. 3, 3.50 CAT. 5, 3.00 CAT. 4 and 1.20 CAT. 2, in the tourist survey it was possible to know that 86.55% of the visitors traveled section 2 of the southern interoceanic highway due to the diversity of flora and fauna and 63.23% due to the diversity of vegetation and landscapes, on the other hand, 348 vectors were collected, 21.84% were Aedes Aegypti, 18.10% P. humanus var. capitis, 16.67% Aedes albopictus, 15.23 Culex sp., 10.92% Anopheles sp., 10.34% Lutzomyia spp., 4.89% Xenopsylla cheopis. and 2.01% Pastrongylus sp. Based on the findings, it is necessary to activate preventive strategies in the transmission of vector diseases, as long as Peru is a beautiful and exciting tourist destination, there will be potential health risks.

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“…Anopheles darlingi was 1st detected in Loreto on the border between Peru and Brazil in 1933, but it was detected in the Iquitos area in 1984 and has fluctuated in density and distribution since (Fernandez et al 2014). Starting in the mid-1990s it became a major malaria vector in the peri-Iquitos area (Reinbold-Wasson et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis of Mosquito Trap Counts In the Peruvian Amazon: Effect of Trap Type and Other Covariates On Counts and Diversity

Peck

Castro-Llanos

López-Sifuentes

et al. 2018

Journal of the American Mosquito Control Association

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Revisión histórica de la distribución de Anopheles (Nyssorhynchus) darlingi (Diptera: culicidae) en la Amazonía peruana

Cited by 9 publications

References 27 publications

Ookinete-Specific Genes and 18S SSU rRNA Evidenced in Plasmodium vivax Selection and Adaptation by Sympatric Vectors

Ookinete-Specific Genes and 18S SSU rRNA Evidenced in Plasmodium vivax Selection and Adaptation by Sympatric Vectors

Riesgo por entomofauna vectorial en áreas de ecoturismo en el Perú

Comparative Analysis of Mosquito Trap Counts In the Peruvian Amazon: Effect of Trap Type and Other Covariates On Counts and Diversity

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