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Lorenz Von Seidlein tells SciDev.Net that mass drug administration as “presumptive treatment” to clear the parasite reservoir was carried out in eight villages spread across Cambodia, Lao PDR, Myanmar and Vietnam. By the third month, the prevalence of P. falciparum had decreased by 92 % in those villages. Over the subsequent nine months, P. falciparum infections returned but stayed well below baseline levels, showing that MDA can stop transmission of falciparum malaria and reduce its prevalence in SE Asia, where resistance to artemisinin has hampered elimination efforts.

Mosquito apr18