Molecular surveillance for multidrug-resistant Plasmodium falciparum, Cambodia

Emerg Infect Dis. 2008 Oct;14(10):1637-40. doi: 10.3201/eid1410.080080.

Abstract

We conducted surveillance for multidrug-resistant Plasmodium falciparum in Cambodia during 2004-2006 by assessing molecular changes in pfmdr1. The high prevalence of isolates with multiple pfmdr1 copies found in western Cambodia near the Thai border, where artesunate-mefloquine therapy failures occur, contrasts with isolates from eastern Cambodia, where this combination therapy remains highly effective.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Animals
  • Antimalarials / administration & dosage
  • Artemisinins / administration & dosage
  • Artesunate
  • Cambodia / epidemiology
  • Drug Resistance, Multiple / genetics
  • Female
  • Gene Dosage
  • Genes, Protozoan
  • Humans
  • Malaria, Falciparum / drug therapy
  • Malaria, Falciparum / epidemiology*
  • Malaria, Falciparum / parasitology*
  • Male
  • Mefloquine / administration & dosage
  • Multidrug Resistance-Associated Proteins / genetics
  • Plasmodium falciparum / drug effects*
  • Plasmodium falciparum / genetics*
  • Plasmodium falciparum / isolation & purification
  • Population Surveillance
  • Protozoan Proteins / genetics

Substances

  • Antimalarials
  • Artemisinins
  • Mdr1 protein, Plasmodium falciparum
  • Multidrug Resistance-Associated Proteins
  • Protozoan Proteins
  • Artesunate
  • Mefloquine