Open AccessJournal Article
Geographical distribution of Anopheles darlingi in the Amazon Basin region of Peru.
TL;DR: Anopheles darlingi was collected from 48.8% of sites, indicating that this species is established throughout central Loreto, including further west in the Amazon Basin than previously reported, and may be found in areas of the Amazon basin where it has not been previously reported.
read more
Abstract: Malaria has reemerged as a significant public health disease threat in Peru, especially within the Amazon Basin region. This resurgence of human cases caused by infection with Plasmodium falciparum and Plasmodium vivax is thought to be associated with the spread of Anopheles darlingi, the principal South American malaria vector, into new areas of the Amazon Basin. However, comprehensive studies of the distribution for this species have not been conducted in Peru for several years, nor are historical accounts accurate enough to determine if An. darlingi was actually present and not collected or misidentified. Therefore, the objective of this study is to define the distribution of An. darlingi as well as obtain data on distribution and abundance of other Anopheles species in this region. Mosquitoes were collected during 2001 in the Departments of Loreto and Ucayali, the two largest Amazonian Departments of Peru. A total of 60,585 specimens representing 12 species of the subgenera Nyssorhynchus and Anopheles were collected at 82 (88.2%) of 93 collecting sites. The majority of mosquitoes obtained were identified as An. benarrochi, comprising 70.7% of mosquitoes collected, followed by An. darlingi (24.0%), Anopheles mattogrosensis (2.4%), and Anopheles triannulatus (1.5%). Anopheles darlingi was collected from 48.8% of sites, indicating that this species is established throughout central Loreto, including further west in the Amazon Basin than previously reported. These data suggest that this species is now found in areas of the Amazon Basin region where it has not been previously reported.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
•Journal Article
Linking deforestation to malaria in the Amazon: characterization of the breeding habitat of the principal malaria vector, Anopheles darlingi.
Amy Y. Vittor,William Pan,Robert H. Gilman,James M. Tielsch,Gregory E. Glass,Tim Shields,Wagner Sánchez-Lozano,Viviana V. Pinedo,Erit Salas-Cobos,Silvia Flores,Jonathan A. Patz +10 more
TL;DR: Deforestation and associated ecologic alterations are conducive to A. darlingi larval presence, and thereby increase malaria risk, in areas with varying degrees of ecologic alteration in the Peruvian Amazon.
335
Ecology of Anopheles darlingi Root with respect to vector importance: a review
Helene Hiwat,Gustavo Bretas +1 more
TL;DR: The results show that Anopheles darlingi is especially important for malaria transmission in the Amazon region and the behavioral variability of the vector, its adaptability, and the limited knowledge of these impede the establishment of effective control strategies.
Does deforestation promote or inhibit malaria transmission in the Amazon? A systematic literature review and critical appraisal of current evidence.
TL;DR: A systematic literature review on malaria risk and deforestation in the Amazon focusing on three main components is conducted, exploring key features that are likely to generate contrasting results and suggesting suggestions for productive avenues in future research.
112
Adherence to 7-day primaquine treatment for the radical cure of P. vivax in the Peruvian Amazon.
Koen Peeters Grietens,Veronica Soto,Annette Erhart,Joan Muela Ribera,Elizabeth Toomer,Alex Tenorio,Tanilu Grande Montalvo,Hugo Rodriguez,Alejandro Llanos Cuentas,Umberto D'Alessandro,Dionicia Gamboa +10 more
TL;DR: Despite being free of charge, treatment adherence to 7-day primaquine for the radical cure of Plasmodium vivax was estimated at 62.2% among patients along the Iquitos-Nauta road in the Peruvian Amazon.
110
Molecular population genetics of the malaria vector Anopheles darlingi in Central and South America.
TL;DR: In South America, the departure from equilibrium was consistent with an expansion that occurred during the Pleistocene, and more ancestral and diverse haplotypes were found in Amazonian and southern Brazil populations, suggesting that Central American populations may have originated in South America.
References
Malaria reemergence in the Peruvian Amazon region.
TL;DR: PlasModium falciparum infection became the dominant Plasmodium infection in the highest transmission areas in the 1997 rainy season and the vector Anopheles darlingi has also increased during this epidemic in Loreto.
DDT, global strategies, and a malaria control crisis in South America
TL;DR: The recent actions to ban DDT, the health costs of such a ban, perspectives on DDT use in agriculture versus malaria control, and costs versus benefits of DDT and alternative insecticides are discussed.
Malaria Vector Heterogeneity in South America
L. Philip Lounibos,Jan E. Conn +1 more
TL;DR: All South American countries except Chile and Uruguay currently experience transmission of human malaria, which is one of the commonest maladies treated at health clinics in rural areas and is one-half of the slightly less than one million annual registered cases.
Population structure of the primary malaria vector in South America, Anopheles darlingi, using isozyme, random amplified polymorphic DNA, internal transcribed spacer 2, and morphologic markers.
Sylvie Manguin,Richard C. Wilkerson,Jan E. Conn,Yasmin Rubio-Palis,James A Danoff-Burg,Donald R. Roberts +5 more
TL;DR: A genetic and morphologic survey of Anopheles darlingi populations collected from seven countries in Central and South America demonstrated a genetic similarity that is consistent with the existence of a single species and suggest that gene flow is occurring throughout the species' geographic range.
104