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Peru

Malaria vector species in Amazonian Peru co-occur in larval habitats but have distinct larval microbial communities

May 24, 2019 - 16:50 -- Open Access
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Author(s): 
Catharine Prussing, Marlon P. Saavedra, Jan E. Conn, et al.
Reference: 
PLoS Negl Trop Dis 13(5): e0007412

In Amazonian Peru, the primary malaria vector, Nyssorhynchus darlingi (formerly Anopheles darlingi), is difficult to target using standard vector control methods because it mainly feeds and rests outdoors.

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A cluster of the first reported Plasmodium ovale spp. infections in Peru occuring among returning UN peace-keepers, a review of epidemiology, prevention and diagnostic challenges in nonendemic regions

May 24, 2019 - 16:08 -- Open Access
Author(s): 
Rosio I. Guerra, Marianela Ore, Hugo O. Valdivia, Danett K. Bishop, Mariana Ramos, Christopher N. Mores and Wesley R. Campbell
Reference: 
Malaria Journal 2019 18:176, 22 May 2019

Plasmodium ovale curtisi and Plasmodium ovale wallikeri are regarded as less virulent forms of malaria with a geographic distribution including Southeast Asia, Central and West Africa, and is increasingly reported as an infection in returning travellers. A species of malaria that may have delayed or relapsing presentations similar to Plasmodium vivax, the clinical presentation of P. ovale spp. has been described to have prepatent periods of 2 weeks or slightly longer with reports of relapse following primary infection out to 8–9 months. This presentation may be obscured further in the setting of anti-malarial exposure, with report of delayed primary infection out to 4 years. Presented is a cluster of 4 imported P. ovale spp. cases in returning Peruvian military personnel assigned to United Nations peace-keeping operations in the Central African Republic.

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Automated microscopy for routine malaria diagnosis: a field comparison on Giemsa-stained blood films in Peru

October 2, 2018 - 15:26 -- Open Access
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Author(s): 
Katherine Torres, Christine M. Bachman, David Bell, et al.
Reference: 
Malaria Journal 2018 17:339, 25 September 2018

Autoscope’s diagnostic performance was on par with routine microscopy when slides had adequate blood volume to meet its design assumptions, as represented by results from the San Juan clinic.

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Preventing malaria in the Peruvian Amazon: a qualitative study in Iquitos, Peru

January 17, 2018 - 15:35 -- Open Access
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Author(s): 
Ian Newell, Connie Wiskin, James Anthoney, Graciela Meza and Gilles de Wildt
Reference: 
Malaria Journal 2018 17:31, 16 January 2018

To eliminate malaria from the Americas, region-specific strategies need to be developed that take into account the local social and cultural contexts.

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Evidence for temporal population replacement and the signature of ecological adaptation in a major Neotropical malaria vector in Amazonian Peru

September 30, 2015 - 16:54 -- Open Access
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Author(s): 
William Lainhart, Sara Bickersmith, Kyle Nadler, Marta Moreno, Marlon Saavedra, Virginia Chu, Paulo Ribolla, Joseph Vinetz, Jan Conn
Reference: 
Malaria Journal 2015, 14:375 (29 September 2015)

Analyses of microsatellite loci from seven (2006) and nine settlements (2012–2014) in the Iquitos area detected two distinctive populations with little overlap, although it is unclear whether this population replacement event is associated with LLIN distribution or climate.

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Implications for changes in Anopheles darlingi biting behaviour in three communities in the peri-Iquitos region of Amazonian Peru

August 5, 2015 - 08:58 -- Open Access
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Author(s): 
Marta Moreno, Marlon P Saavedra, Sara A Bickersmith, William Lainhart, Carlos Tong, Freddy Alava, Joseph M Vinetz, Jan E Conn
Reference: 
Malaria Journal 2015, 14:290 (30 July 2015)

These data underscore the importance of HLC as the most meaningful collection method for measuring vector biology indices in this region.

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Plasmodium vivax malaria at households: spatial clustering and risk factors in a low endemicity urban area of the northwestern Peruvian coast

April 24, 2015 - 09:05 -- Open Access
Author(s): 
Angel Rosas-Aguirre, Oscar J Ponce, Gabriel Carrasco-Escobar, Niko Speybroeck, Juan Contreras-Mancilla, Dionicia Gamboa, Edwar Pozo, Sócrates Herrera, Alejandro Llanos-Cuentas
Reference: 
Malaria Journal 2015, 14:176 (24 April 2015)

Plasmodium vivax malaria incidence is highly heterogeneous in space and time in the urban study area with important geographical and housing risk factors associated with symptomatic episodes.

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NOT Open Access | Advice on Malaria and Yellow Fever Prevention Provided at Travel Agencies in Cuzco, Peru

January 7, 2015 - 12:26 -- NOT Open Access
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Author(s): 
Pablo G. Villanueva-Meyer, Carlos A. Garcia-Jasso, Chelsea A. Springer, Jenna K. Lane, Bonny S. Su, Idania S. Hidalgo, Mary R. Goodrich, Emily L. Deichsel, A. C. White Jr and Miguel M. Cabada
Reference: 
Journal of Travel Medicine, Volume 22, Issue 1, pages 26–30, January/February 2015

Travelers receive medical advice from a variety of sources, including travel agencies.

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Anti-Plasmodium falciparum invasion ligand antibodies in a low malaria transmission region, Loreto, Peru

November 11, 2012 - 07:17 -- Open Access
Author(s): 
Villasis E, Lopez-Perez M, Torres K, Gamboa D, Neyra V, Bendezu J, Tricoche N, Lobo C, Vinetz JM, Lustigman S
Reference: 
Malaria Journal 2012, 11:361 (30 October 2012)
MalariaWorld

These data suggest that falciparum malaria patients who develop clinical immunity (asymptomatic parasitaemia) in a low transmission setting such as the Peruvian Amazon have antibody responses to defined P. falciparum invasion ligand proteins higher than those found in symptomatic (non-immune) patients.

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