Trends in Plasmodium falciparum resistance markers to sulfadoxine-pyrimethamine and amodiaquine over ten years of seasonal malaria chemoprevention in Moissala Health District, Chad.
BACKGROUND: Seasonal Malaria Chemoprevention (SMC) has been implemented in Moissala Health District, southern Chad, since 2013 using the standard regimen of sulfadoxine-pyrimethamine (SP) and amodiaquine (AQ).