Such costs are a huge economic burden on malaria-prone countries and impede their development. It has been estimated that annual economic growth in countries with a high incidence of malaria is 1.3 percentage points lower than that of other countries.
这种成本对于疟疾区的国家而言是一项巨大的经济负担，并阻碍了它们的发展。据预测疟疾发病率高的国家其年经济增长率比其他国家要低1.3个百分点。