While progress in reducing the burden of malaria has been remarkable, resurgences in cases were observed in parts of at least three African countries ( Rwanda, Sao Tome and Principe, and Zambia). 虽然减少疟疾负担的成就是显著的,但是至少有三个非洲国家(卢旺达、圣多美和普林西比、赞比亚)的部分地区出现了病例回升。