Sixthly, the unchecked spread of infectious diseases like HIV/AIDS and malaria, which are a great drain on human and economic resources, has become a serious economic and social problem in African countries, as well as a big challenge to their security.
六、艾滋病、疟疾等传染病的肆虐给非洲国家的人类和经济资源造成了重大的损失，已经成为一个严重的经济和社会问题。