媒體英語會帶大家一起學習 BBC 撰稿人在報道世界大事時常用到的單詞和短語。
科學家們新發(fā)現(xiàn)了一種引發(fā)瘧疾的寄生蟲菌株,這類菌株對現(xiàn)有的治療瘧疾最有效的藥物青蒿素具有抗藥性。以下是 BBC Rebecca Morelle 的報道:
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Artemisinin is a frontline drug in the fight against malaria. It's used around the world, and can clear the infection in just a few days. But reports of resistance began to emerge in western Cambodia in 2008, and this has now spread to other areas in South East Asia.
To investigate, scientists sequenced the genomes of more than 800 malaria-causing parasites collected from all around the world. They found that some of the strains present in Cambodia were significantly different to the rest, and these were able to withstand artemisinin treatment.
The researchers don't yet know how the parasites are beating the drugs. But they say understanding their genetic fingerprint will help them to quickly detect and track these strains if they spread.
Glossary 詞匯表 (點擊單詞收聽發(fā)音)
- frontline一線的
- resistance抵制,免疫力
- emerge出現(xiàn)
- sequenced the genomes基因排列
- parasites寄生蟲,寄生物
- strains種類
- withstand耐得住,抗得起
- genetic fingerprint基因指紋
- detect發(fā)現(xiàn),查明
- track追蹤研究