Serious resistance to malaria medication in Myanmar, Laos, Thailand, Cambodia

The most serious strain of malaria (the P. falciparum strain) is rapidly developing mutations that confer resistance to two very important drugs used to treat serious malaria infections, artemisinin and piperaquine, that is often used in combination with artemisinin. The drug-resistant strains are spreading in the Greater Mekong subregion, Including Myanmar, northeastern Thailand, southern Laos, and western Cambodia.

Visit our Health Library for more information on exposure to and the prevention of Malaria.

Advice For Travellers

Artemisinin and its derivatives are often used when all other drugs fail. If the patient’s infection is resistant to this medication, there may be little more that can be done to cure the patient. Travellers in these affected areas should be extra vigilant and carefully follow recommendations to avoid mosquito bites.