Distribuição sazonal de vetores da malária em Machadinho d'Oeste, Rondônia, Região Amazônica, Brasil

Souza-Santos, Reinaldo

doi:10.1590/s0102-311x2002000600039

Cited by 28 publications

(14 citation statements)

References 10 publications

(17 reference statements)

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“…darlingi presence and dominance. For example, high HBRs have been correlated with low rainfall in Brazil [44], [45] and Venezuela [46], but also with rainy periods in the Amazonian forest of French Guiana [47] and Brazil [48]. These different responses to rainfall regimes combined with An.…”

Section: Discussionmentioning

confidence: 97%

Malaria Vectors in Ecologically Heterogeneous Localities of the Colombian Pacific Region

et al. 2014

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The Colombian Pacific region is second nationally in number of malaria cases reported. This zone presents great ecological heterogeneity and Anopheles species diversity. However, little is known about the current spatial and temporal distribution of vector species. This study, conducted in three ecologically different localities of the Pacific region, aimed to evaluate the composition and distribution of Anopheles species and characterize transmission intensity. A total of 4,016 Anopheles mosquitoes were collected representing seven species. The composition and dominant species differed in each locality. Three species were infected with malaria parasites: Anopheles darlingi and An. calderoni were infected with Plasmodium falciparum and An. nuneztovari with Plasmodium vivax VK210 and VK247. Annual EIRs varied from 3.5–7.2 infective bites per year. These results confirm the importance of the primary vector An. nuneztovari in areas disturbed by human interventions, of An. darlingi in deforested margins of humid tropical rainforest and An. albimanus and the suspected vector An. calderoni in areas impacted by urbanization and large-scale palm oil agriculture close to the coast. This constitutes the first report in the Colombia Pacific region of naturally infected An. darlingi, and in Colombia of naturally infected An. calderoni. Further studies should evaluate the epidemiological importance of An. calderoni in the Pacific region.

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Section: Discussionmentioning

confidence: 97%

Malaria Vectors in Ecologically Heterogeneous Localities of the Colombian Pacific Region

et al. 2014

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“…Previous studies in Venezuela and Brazil reported higher An. triannulatus densities during and at the end of the rains [56,59,65]. Given that An.…”

Section: Discussionmentioning

confidence: 99%

Abundance, behavior and entomological inoculation rates of anthropophilic anophelines from a primary Colombian malaria endemic area

et al. 2013

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BackgroundIn Colombia for several years, the Urabá-Bajo Cauca and Alto Sinú region has registered the highest numbers of malaria cases in the country. Malaria vector incrimination and the characterization of entomological parameters will allow for a better understanding of malaria transmission dynamics and the design of effective vector control strategies for this region.MethodsWe conducted a longitudinal survey between November 2008 and June 2010 to quantify entomological (abundance and biting activity) and transmission parameters, including infection rate (IR) and entomological inoculation rate (EIR), to incriminate potential anopheline vectors in three localities of a major Colombian malaria endemic region, the Urabá-Bajo Cauca and Alto Sinú: La Capilla, Juan Jose and El Loro.ResultsA total of 5,316 anopheline mosquitoes corresponding to seven species were collected. Anopheles nuneztovari (69.5%) and Anopheles darlingi (22.2%) were the most abundant species, followed by Anopheles pseudopunctipennis (4.5%), Anopheles albitarsis s.l. (2%), Anopheles triannulatus lineage Northwest (1.8%), Anopheles punctimacula and Anopheles argyritarsis (at < 1%, each). Three species were naturally infected with Plasmodium vivax, An. nuneztovari, An. darlingi (IRs < 1%) and An. triannulatus (IR = 1.5%). Annual EIRs for these species ranged from 3.5 to 4.8 infective bites per year.ConclusionsThese results indicate that An. nuneztovari and An. darlingi continue to be the most important malaria vectors in this region. Anopheles triannulatus, a species of local importance in other South American countries was found naturally infected with Plasmodium vivax VK247; therefore, further work should be directed to understand if this species has a role in malaria transmission in this region.

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“…triannulatus s.l. generally peak during the rainy season or during the transitions between rainy and dry seasons (Ianelli et al 1998, Xavier & Rebêlo 1999, Souza-Santos 2002. In Venezuela and Argentina, larval density increased in the beginning and in the middle of the dry season, respectively (Rubio-Palis et al 2005, Stein et al 2004).…”

Section: Discussionmentioning

confidence: 99%

“…triannulatus s.l. in South America seem to increase during the rainy season or during the transitions between dry and rainy seasons (Deane et al 1948, Lourenço-de-Oliveira et al 1989, Rebêlo et al 1997, Ianelli et al 1998, Xavier & Rebêlo 1999, Souza-Santos 2002. High capture rates of An.…”

Section: An Triannulatus Ss Is Widely Distributed Throughoutmentioning

confidence: 99%

Diverse population dynamics of three Anopheles species belonging to the Triannulatus Complex (Diptera: Culicidae)

Silva-do-Nascimento

Lourenço‐de‐Oliveira

2007

Mem. Inst. Oswaldo Cruz

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Distribuição sazonal de vetores da malária em Machadinho d'Oeste, Rondônia, Região Amazônica, Brasil

Abstract: Abstract

Cited by 28 publications

References 10 publications

Malaria Vectors in Ecologically Heterogeneous Localities of the Colombian Pacific Region

Malaria Vectors in Ecologically Heterogeneous Localities of the Colombian Pacific Region

Abundance, behavior and entomological inoculation rates of anthropophilic anophelines from a primary Colombian malaria endemic area

Diverse population dynamics of three Anopheles species belonging to the Triannulatus Complex (Diptera: Culicidae)

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