重启DDT

帕洛阿尔托—作为微软的创始人之一的比尔·盖茨令人着迷。同样令人捉摸不透的还有比尔·盖茨和梅林达盖茨基金会,这个全球最大的慈善机构那封19页的年度述职信。但对于盖茨这个可以聘用专家研究任何课题的聪明人,其基金会的某些战略却令人费解。

看看他的基金会应对疟疾的方法:在低技术层面上专注于使用蚊帐,一种有一定效果的干预方式;在高技术层面上,则顷力研发疫苗,费时数十载却无斩获。这种方法排除了一种古老、廉价又安全的控制病媒疟蚊的举措:化学农药滴滴涕(DDT)。

疟疾是一种折磨,对于生活在贫穷的赤道国家的居民而言更是如此。全世界有41%的人口生活在疟疾的疫区,每年有3.5-5亿人罹患此病。

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