Urgent action is needed to confront artemisinin partial resistance in African malaria parasites.

Ishengoma DS, Gosling R, Martinez-Vega R, Beshir KB, Bailey JA, Chimumbwa J, Sutherland C, Conrad MD, Tadesse FG, Juliano JJ, Kamya MR, Mbacham WF, Ménard D, Rosenthal PJ, Raman J, Tatarsky A, Tessema SK, Fidock DA, Djimde AA