African households obtained access to modern medicine much later and more suddenly than people in other regions. The resulting improvement in child survival rates and population growth during the 1970’s and 1980’s were faster than those seen earlier in Asia or Latin America.
其次是人口转机。 联合国人口预测项目最新统计搜集的人口普查数据显示，非洲正在慢慢显现出它历史的作用。 非洲家庭接触现代医药技术比其他地区民众晚得多，也突然得多。 由此造成的二十世纪七八十年代儿童存活率的提高和人口数量的增长也比此前亚洲或拉美更快。