SSS 2010-12-15
时间：2018-12-24 作者：英语课 分类：Scientific American(十二)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.
Rats have long been guilty of spreading disease. But now they've gone into the diagnosis 1 side. Because rats can be trained to spot tuberculosis—and to do it better than conventional techniques. The finding is in the American Journal of Tropical Medicine and Hygiene 2.
TB is the number-one infectious disease killer 3 in the world. Early detection saves lives. But the most common way to diagnose TB, visually checking sputum samples for the microbe that causes the disease, requires sophisticated equipment and trained personnel. And it's not all that accurate.
That's where the rats come in. The critters are easy to train and can smell chemicals present with a TB infection. So scientists sent more than 20,000 sputum samples from 10,000 patients in Tanzania to be analyzed 4 microscopically 5. They then presented the same samples to the rats. The results: the fancy microscopes found about 13 percent of the patients to be TB-positive. The rats identified an additional 620 cases, boosting the detection rate by 44 percent.
That may not sound like much, but remember a person with TB can infect another dozen or so people over the course of a year. So that's more than 7,000 people that could be saved by a rat.
Thanks for the minute. For Scientific American's 60-Second Science, I'm Karen Hopkin.
- His symptoms gave no obvious pointer to a possible diagnosis.他的症状无法作出明确的诊断。
- The engineer made a complete diagnosis of the bridge's collapse.工程师对桥的倒塌做一次彻底的调查分析。
- Their course of study includes elementary hygiene and medical theory.他们的课程包括基础卫生学和医疗知识。
- He's going to give us a lecture on public hygiene.他要给我们作关于公共卫生方面的报告。
- Heart attacks have become Britain's No.1 killer disease.心脏病已成为英国的头号致命疾病。
- The bulk of the evidence points to him as her killer.大量证据证明是他杀死她的。
- The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
- The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》
- Microscopically the ores are medium grained to amorphous. 显微镜下，矿石为中粒至非晶质。 来自辞典例句
- He studied microscopically the statistics of trade. 他极仔细地研究了贸易统计数字。 来自辞典例句