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Drug-resistant malaria 抗藥性瘧疾

更新時間 2013年 5月 2日, 星期四 - 格林尼治標準時間14:36

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Man sleeping under a mosquito net

科學家們新發現了一種引發瘧疾的寄生蟲菌株,這類菌株對現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:

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.

Quiz 聽力測驗

How long does it take artemisinin to cure a malaria infection?

A few days.

In which places have artemisinin-resistant parasites been found?

In Cambodia and other parts of South East Asia.

True or false: Scientists understand how the parasites are beating artemisinin.

False. The researchers don't yet know how the parasites are beating the drugs.

True or false: Scientists say checking malaria sufferers' fingerprints can help them track the disease.

False. Scientists say understanding the parasites' genetic fingerprint will help them to quickly detect and track these strains if they spread.

Glossary 词汇表 (点击单词收听发音)


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