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Plasmodium vivax

Plasmodium vivax infection in Anajas, State of Para: no differential resistance profile among Duffy-negative and Duffy-positive individuals

December 26, 2012 - 17:00 -- Open Access
Author(s): 
Carvalho TA, Queiroz MG, Cardoso GL, Diniz IG, Silva AN, Pinto AY, Guerreiro JF
Reference: 
Malaria Journal 2012, 11:430 (22 December 2012)
MalariaWorld

The presence of P. vivax infection in Duffy-negative individuals was investigated in a cross-sectional study conducted in Anajas, Archipelago of Marajo, State of Para, which is an area of malaria transmission in the Brazilian Amazonia.

A rapid and scalable density gradient purification method for Plasmodium sporozoites

December 19, 2012 - 06:50 -- Open Access
Author(s): 
Kennedy M, Fishbaugher ME, Vaughan AM, Patrapuvich R, Boonhok R, Yimamnuaychok N, Rezakhani N, Metzger P, Ponpuak M, Sattabongkot J, Kappe SH, Hume JC, Lindner SE
Reference: 
Malaria Journal 2012, 11:421 (17 December 2012)
MalariaWorld

This novel method effectively purifies viable malaria sporozoites by greatly reducing contaminating mosquito debris and microbial burdens associated with parasite isolation

Spleen Rupture in a Case of Untreated Plasmodium vivax Infection

December 19, 2012 - 06:44 -- Open Access
Author(s): 
André Machado Siqueira, Belisa Maria Lopes Magalhães, Gisely Cardoso Melo, Mireia Ferrer, Paola Castillo, Lorena Martin-Jaular, Carmen Fernandez-Becerra, Jaume Ordi, Antonio Martinez, Marcus Vinícius Guimarães Lacerda, Hernando A. del Portillo
Reference: 
PLoS Negl Trop Dis 6(12): e1934
MalariaWorld

We report the unique case of a 19-year-old nonimmune patient with Plasmodium vivax monoinfection, confirmed by PCR in the peripheral blood and in the spleen section, who was splenectomized due to spleen rupture two days prior to the diagnosis and treatment of the malarial infection

NOT Open Access | Congenital malaria in a European country

December 13, 2012 - 15:56 -- NOT Open Access
Author(s): 
Ana Rita Prior, Filipa Prata, Ana Mouzinho, José Gonçalo Marques
Reference: 
BMJ Case Reports 2012
MalariaWorld

A newborn of 26 days, born in Lisbon, Portugal, presented with fever, anaemia and thrombocytopaenia. She was admitted considering neonatal sepsis, but Plasmodium vivax was identified in the second peripheral blood smear performed. Parenteral quinine was started with good evolution.

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Local population structure of Plasmodium: impact on malaria control and elimination

December 13, 2012 - 07:40 -- Open Access
Author(s): 
Chenet SM, Schneider KA, Villegas L, Escalante AA
Reference: 
Malaria Journal 2012, 11:412 (11 December 2012)
MalariaWorld

Molecular surveillance has great potential; however, it requires preliminary local studies in order to properly interpret the emerging patterns in the context of elimination.

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G6PD Deficiency Prevalence and Estimates of Affected Populations in Malaria Endemic Countries: A Geostatistical Model-Based Map

December 4, 2012 - 07:32 -- Open Access
Author(s): 
Rosalind E. Howes, Frédéric B. Piel, Anand P. Patil, Oscar A. Nyangiri, Peter W. Gething, Mewahyu Dewi, Mariana M. Hogg, Katherine E. Battle, Carmencita D. Padilla, J. Kevin Baird, Simon I. Hay
Reference: 
PLoS Med 9(11): e1001339
MalariaWorld

G6PDd is widespread and spatially heterogeneous across most MECs where primaquine would be valuable for malaria control and elimination.

Medical Treatment: 

Genotype comparison of Plasmodium vivax and Plasmodium falciparum clones from pregnant and non-pregnant populations in North-west Colombia

November 27, 2012 - 15:46 -- Open Access
Author(s): 
Arango EM, Samuel R, Agudelo OM, Carmona-Fonseca J, Maestre A, Yanow SK
Reference: 
Malaria Journal 2012, 11:392 (26 November 2012)
MalariaWorld

In this study, genetic analysis was performed on Plasmodium vivax and Plasmodium falciparum parasites isolated from peripheral and placental blood in pregnant women living in north-west Colombia, and compared with parasites causing acute malaria in non-pregnant populations.

Medical Condition: 

NOT Open Access | Novel mutations in the antifolate drug resistance marker genes among Plasmodium vivax isolates exhibiting severe manifestations

November 26, 2012 - 13:05 -- NOT Open Access
Author(s): 
Shilpi Garg, Vishal Saxena, Ashis Das, et al.
Reference: 
Experimental Parasitology, Volume 132, Issue 4, December 2012, Pages 410–416
MalariaWorld

Plasmodium vivax is the predominant species of the human malaria parasite present in the Indian subcontinent. There have been recent reports on Chloroquine (CQ) resistance and severe manifestations shown by P. vivax from different regions of the world including India. This study focuses on Bikaner, India where during the last few years there have been continuous reports of severe manifestations by both Plasmodium falciparum and P. vivax.

Medical Treatment: 

Sequence Analysis of Different Domains of Plasmodium vivax Apical Membrane Antigen (PvAMA-1 gene) Locus in Iran

November 15, 2012 - 07:37 -- Open Access
Author(s): 
A Motevalli Haghi, M Nateghpour, GhH Edrissian, Z Sepehrizadeh, M Mohebali, MR Khoramizade, S Sabouri Shahrbabak, H Moghimi
Reference: 
Iran J Parasitol. 2012;7(1):26-31
MalariaWorld

We cloned and characterized three domains of PvAMA-1 gene from an Iranian patient.

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NOT Open Access | Malaria outside the Amazon region: Natural Plasmodium infection in anophelines collected near an indigenous village in the Vale do Rio Branco, Itanhaém, SP, Brazil

November 13, 2012 - 11:11 -- NOT Open Access
Author(s): 
Amanda Neves, Paulo Roberto Urbinatti, Rosely dos Santos Malafronte, Aristides Fernandes, Wanderley da Silva Paganini, Delsio Natal
Reference: 
Acta Tropica, Volume 125, Issue 1, January 2013, Pages 102–106
MalariaWorld

A few cases of Plasmodium vivax malaria in which anophelines of subgenus Kerteszia were incriminated as vectors have been reported outside the Amazon region, in the Atlantic Forest.

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