科學(xué)60秒:有蟲(chóng)出沒(méi)請(qǐng)小心
Shakespeare noted that a worm may eat a king, after that king is dead. Sadly, ___1___ infect people who are still alive, especially kids. Public health advocates estimate that a third of the people on earth are infected with parasitic worms, called helminthes, particularly in poorer areas with ___2___.
Helminths harm health, but also interfere with nutrition and even ___3___. So the London School of Hygiene and Tropical Medicine, with the Partnership for Child Development at Imperial College London, launched what’s called This Wormy World. It’s an atlas of the distribution and prevalence of helminth diseases, including roundworm, hookworm and whipworm.
It’s often easy to control the parasites with cheap treatments. But resources get wasted because ___4___ are targeted at the wrong communities. The atlas should help the eradication fight by letting health officials know just where the problem areas are.
The scientists have been collecting data for the past decade. Their first map focuses on Africa, where worm ___5___ are worst. Maps for the rest of the world will be out by the end of 2010—providing a complete picture of this wormy world of ours. And a new tool to tackle it.
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- 牛津小學(xué)英語(yǔ)二年級(jí)