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nsofor1_CRISTINAALDEHUELAAFPGettyImages_nursepreparingmalariavaccine Cristina Aldehuela/AFP/Getty Images

最好的疟疾疫苗

阿布贾—目前,撒哈拉以南非洲正在试点一种新的疟疾疫苗,90%的疟疾病例发生在该地区,新疫苗可能成为改变全球健康局面的因素。但是,要让新疫苗充分发挥权力,卫生部门必须做出一些重要改变。

疟疾每年都要造成全世界一百万人死亡,其中大部分是五岁以下儿童。疟疾给非洲造成的经济成本——治疗费用、旷工旷课、生产率下降以及投资和旅游业损失等——每年估计可到120亿美元。

新的RTS,S/AS01(RTS,S)疫苗由葛兰素史克公司花了32年,耗资 7亿多美元研发,它可以大大有助于改变这一局面。5—17个月儿童临床测试表明,接种四剂疫苗能够在此后四年中降低大约四成(39%)疟疾病例,减少大约三成(29%)重症疟疾病例,大大降低住院率。重症病例的输血需求也降低了29%。

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  1. roach111_westend61_getty images_shipping trade Westend61/Getty Images

    A Global Economy Without a Cushion

    Stephen S. Roach

    From 1990 to 2008, annual growth in world trade was fully 82% faster than world GDP growth. Now, however, reflecting the unusually sharp post-crisis slowdown in global trade growth, this cushion has shrunk dramatically, to just 13% over the 2010-19 period, leaving the world economy more vulnerable to all-too-frequent shocks.

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