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    Secrets of the Plague 歐洲黑死病之秘密

    Secrets of the Plague 歐洲黑死病之秘密

    By Matt McGrath, BBC World Service

    Secrets of the Plague 歐洲黑死病之秘密

    The skeletons of victims of the Black Death.

    媒體英語(yǔ)會(huì)帶大家一起學(xué)習(xí) BBC 撰稿人在報(bào)道世界大事時(shí)常用到的單詞和短語(yǔ)。

    Background: 科學(xué)家首次揭示了歐洲黑死病鼠疫病源的遺傳密碼。

    黑死病或人們常說(shuō)的歐洲大瘟疫,曾于14世紀(jì)奪走了成千上萬(wàn)歐洲人的生命。

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    Humans have rarely encountered an enemy as devastating as the bacterium Yersinia pestis. Between 1347 and 1351 it sparked the Black Death, an infection carried by fleas that spread rapidly across Europe, killing around 50 million people.

    Now scientists have uncovered some of the genetic secrets of the plague, thanks to DNA fragments drilled from the teeth of victims buried in a graveyard in East London.

    The researchers say that all current strains circulating in the world are directly related to the medieval bacterium. And while the infection still kills 2,000 people globally every year, it's much less of a threat because our immune systems have adapted to it.

    The scientists say the techniques used to rebuild the genome of the Black Death could now be used to reconstruct other ancient pathogens.

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