File photo taken on July 25, 2021 shows boxes of Artequick, a Chinese-developed drug which has a swift effect against malaria parasites, at the outskirts of Sao Tome, capital of Sao Tome and Principe. Sao Tome and Principe, an island country off the west coast of Africa, is on its way to eliminating malaria with the help of Chinese doctors and medicine. (Xinhua)
