在一些非洲国家，手机使用率达到80 - 90%。
诺华公司已经在一些非洲国家获得了准专有权。
Novartis has acquired semi-exclusive rights in certain African countries.
1940年代至1960年代之间，在一些非洲国家进行了广泛的大规模疫苗接种运动，导致黄热病几乎完全绝迹。
Between the 1940s and 1960s, widespread mass vaccination campaigns in some African countries had resulted in the almost-complete disappearance of yellow fever.
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