GENETIC DIVERSITY OF PLASMODIUM VIVAX MEROZOITE SURFACE PROTEIN-3[alpha] (PVMSP-3[alpha]) GENE IN JHAPA DISTRICT OF NEPAL

GENETIC DIVERSITY OF PLASMODIUM VIVAX MEROZOITE SURFACE PROTEIN-3[alpha] (PVMSP-3[alpha]) GENE IN JHAPA DISTRICT OF NEPAL

In Nepal, Plasmodium vivax accounts for approximately 80-90% of the malaria cases, but limited studies have been conducted on the genetic diversity of this parasite population. This study was carried out to determine the genetic diversity of P. vivax population sampled from subjects living in an end...

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Veröffentlicht in:Southeast Asian journal of tropical medicine and public health 2012-03, Vol.43 (2), p.280
Hauptverfasser: Adhikari, Madhav, Ranjitkar, Samir, Schousboe, Mette Leth, Alifrangis, Michael, Imwong, Mallika, Bhatta, Dwij Raj, Banjara, Megha Raj
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container_title Southeast Asian journal of tropical medicine and public health
container_volume 43
creator Adhikari, Madhav
Ranjitkar, Samir
Schousboe, Mette Leth
Alifrangis, Michael
Imwong, Mallika
Bhatta, Dwij Raj
Banjara, Megha Raj
description In Nepal, Plasmodium vivax accounts for approximately 80-90% of the malaria cases, but limited studies have been conducted on the genetic diversity of this parasite population. This study was carried out to determine the genetic diversity of P. vivax population sampled from subjects living in an endemic area of Jhapa District by analyzing the polymorphic merozoite surface protein-3alpha (Pvmsp-3alpha) gene by using PCR-restriction fragment length polymorphism. Three distinct genotypes were obtained from 96 samples; type A: 40 (71%), type B: 7 (13%), and type C: 9 (16%) which could be categorized into 13 allelic patterns: A1-A9, B1, B2, C1 and C2. These results indicated a high genetic diversity within the studied P. vivax population. As the transmission rate of malaria is low in Nepal, the diversity is most likely due to migration of people between the malaria endemic regions, either within the country or between Nepal and India. Similar prevalence of the three genotypes of Pvmsp-3alpha between the two countries likely supports the latter explanation.
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