G. Dennis Shanks*
, Simon I. Hay†‡, Judy A. Omumbo‡, and Robert W. Snow‡§
Figure 7. . Annual antimalarial drug purchases recorded in the respective tea plantation hospital pharmacy records, Kericho, Kenya, 1997–2002, showing the discontinuation of chloroquine as sulfadoxine-pyrimethamine (SP) became first-line therapy. Records of SP purchases at plantation 1 prior to 2001 were not available.