研究人类免疫缺陷病毒（HIV）感染的流行程度与一些非洲国家贫富状态的根本的结构性因素之间的关系。
To investigate the relationships between the prevalence of human immunodeficiency virus (HIV) infection and underlying structural factors of poverty and wealth in several African countries.
目的探讨人免疫缺陷病毒（HIV）感染状态对间日疟严重程度的影响。
Objective To explore the impact of human immunodeficiency virus(HIV) infection status on the severity of plasmodium vivax malaria.
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