<prompt> The development of resistance to conventional treatment has led WHO to recommend the use of combination therapies containing artemisinin derivative artemisinin-based combination therapies also known as ACTs. All of the following combination therapies are recommended if such resistance is suspected, exceptArtemether plus lumefantrineArtesunate plus quinineArtesunate plus pyrimethamine-sulfadoxineArtesunate plus mefloquine  <response>: The WHO recommended ACTs include:Artemether-lumefantrineArtesunate-amodiaquineArtesunate-mefloquineArtesunate-sulfadoxine-pyrimethamineDihydroartemisinin-piperaquine 