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close this bookGuidelines for the Treatment of Malaria (WHO; 2006; 266 pages) View the PDF document
View the documentGlossary
View the documentAbbreviations
open this folder and view contents1. Introduction
View the document2. The clinical disease
open this folder and view contents3. Treatment objectives
open this folder and view contents4. Diagnosis of malaria
close this folder5. Resistance to antimalarial medicines9
View the document5.1 Impact of resistance
View the document5.2 Global distribution of resistance
View the document5.3 Assessing resistance
open this folder and view contents6. Antimalarial treatment policy
open this folder and view contents7. Treatment of uncomplicated P. Falciparum malaria10
open this folder and view contents8. Treatment of severe falciparum malaria14
open this folder and view contents9. Treatment of malaria caused by P. vivax, P. ovale or P. malariae19
View the document10. Mixed malaria infections
open this folder and view contents11. Complex emergencies and epidemics
open this folder and view contentsAnnexes
 

5. Resistance to antimalarial medicines9

9 Further information on the emergence, spread and prevention of resistance to antimalarials is provided in Annex 6. from Peru. P. vivax remains sensitive to chloroquine in South-East Asia, the Indian subcontinent, the Korean peninsula, the Middle East, north-east Africa, and most of South and Central America.


Resistance has arisen to all classes of antimalarials except, as yet, to the artemisinin derivatives. This has increased the global malaria burden and is a major threat to malaria control. Widespread and indiscriminate use of anti-malarials places a strong selective pressure on malaria parasites to develop high levels of resistance. Resistance can be prevented, or its onset slowed considerably, by combining antimalarials with different mechanisms of action and ensuring very high cure rates through full adherence to correct dose regimens.

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