When the swine flu pandemic struck in 2009, some of the world’s richest countries scrambled to get their hands on vaccines however they could. Poorer countries — among the worst affected — were pushed to the back of the queue, as western nations signed deals with drugmakers to guarantee access to vaccines.
2009年猪流感爆发时，世界上一些最富有的国家争相把手伸向疫苗。西方国家与制药企业签署了确保获得疫苗的协议，处于受疫情影响最严重行列的较贫穷国家只得排在队尾。
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