泛亞馬遜公路(Trans-Amazonian Highway)沿途的雨林被砍伐殆盡,準備養牛。像這樣的森林空隙地,跟瘧疾之類傳染病的傳播有關。PHOTOGRAPH BY RICHARD BARNES, NAT GEO IMAGE COLLECTION
在剛果民主共和國的馬塔迪(Matadi),一名男子正在噴灑藥劑,以消滅攜帶黃熱病毒的埃及斑蚊(Aedes mosquito)。PHOTOGRAPH BY WILLIAM DANIELS, NAT GEO IMAGE COLLECTION
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