Declining Artesunate-Mefloquine Efficacy against Falciparum Malaria on the Cambodia–Thailand Border

Autor: Chansuda Wongsrichanalai, Steven R Meshnick
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Emerging Infectious Diseases, Vol 14, Iss 5, Pp 716-719 (2008)
Druh dokumentu: article
ISSN: 1080-6040
1080-6059
DOI: 10.3201/eid1405.071601
Popis: Resistance to many antimalaria drugs developed on the Cambodia–Thailand border long before developing elsewhere. Because antimalaria resistance is now a global problem, artemisinin-based combination therapies (ACTs) are the first-line therapies in most malaria-endemic countries. However, recent clinical and molecular studies suggest the emergence of ACT-resistant Plasmodium falciparum infections in the Cambodia–Thailand border area, where standard ACT is artesunate and mefloquine. These ACT failures might be caused by high-level mefloquine resistance because mefloquine was used for monotherapy long before the introduction of ACT. This observation raises 2 questions. First, how can existing P. falciparum–resistant strains be controlled? Second, how can the evolution of new ACT- resistant strains be avoided elsewhere, e.g., in Africa? Enforcement of rational drug use and improved diagnostic capacity are among the measures needed to avoid and contain ACT resistance.
Databáze: Directory of Open Access Journals