日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

English 中文網(wǎng) 漫畫網(wǎng) 愛新聞iNews 翻譯論壇
中國(guó)網(wǎng)站品牌欄目(頻道)
當(dāng)前位置: Language Tips > Special Speed News VOA慢速

WHO urges ban on blood test for tuberculosis

[ 2011-08-18 13:27]     字號(hào) [] [] []  
免費(fèi)訂閱30天China Daily雙語新聞手機(jī)報(bào):移動(dòng)用戶編輯短信CD至106580009009

WHO urges ban on blood test for tuberculosis

This is the VOA Special English Health Report.

The World Health Organization is urging health officials to ban commonly-available blood tests for tuberculosis. WHO officials made the call after two studies found that results from a commonly used test are undependable and misleading.

The blood tests are low-cost and produce fast results. They are widely used in developing countries, especially India. The Indian government says the country has more than two million new cases of TB a year.

WHO urges ban on blood test for tuberculosis

But, researchers say the tests being sold are dangerously inaccurate. They say the results are wrong in 50 percent of patients.

David Dowdy studies infectious diseases at the Johns Hopkins Bloomberg School of Public Health in Baltimore, Maryland. He led one of the studies.

DAVID DOWDY: "These tests are actively doing people harm by causing them either to take medicines that they don't need or delaying the diagnosis that they actually do need, to get better."

Traditional tests for TB examine the sputum, a material found in a person's lungs. Active TB is identified if certain bacterium grows in the test material. However, these tests take longer to carry out. Dr. Dowdy says the blood tests are widely used because of the speed of results.

DAVID DOWDY: "What these tests do is they measure antibodies in the blood against TB so anytime anyone has been infected with TB at any time in their life, they will develop antibodies. The problem is that one person's antibodies are not going to be the same as another person's antibodies. And we don't have a test yet that can detect these antibodies across the board."

The leader of the other study was Madhukar Pai, an epidemiologist at McGill University in Montreal, Canada. He says the tests are usually used by private medical centers -- not government TB control programs.

MADHUKAR PAI: "So these tests are uniformly not used in the developed world. They are mostly used in countries with weak regulation, and lack of regulation allows these sorts of tests to be on the market and used freely."

Experts say the blood tests are a big business in developing countries, worth millions of dollars a year. The World Health Organization says a million of the tests are done every year. But, the tests are not approved by any recognized supervisory group.

Dr. Pai also says the WHO is pushing scientists to continue research for a quick test.

MADHUKAR PAI: "[Be]cause someday we want a simple dipstick-like test for TB, as we have for HIV and malaria. But right now we don't have such a test for TB for point of care use."

And that's the VOA Special English Health report, written by Caty Weaver, with reporting from Jessica Berman and Vidushi Sinha. For more health news and to learn English, go to voaspecialenglish.com. And follow us on Facebook and Twitter at VOA Learning English. I'm Christopher Cruise.

sputum: a mass of salivary matter ejected from the mouth 痰;唾液

epidemiologist: 流行病學(xué)家

Related stories:

Microbe could help battle malaria

TB rampant despite progress

New developments against TB

Little progress made against tuberculosis

(來源:VOA 編輯:崔旭燕)

 
中國(guó)日?qǐng)?bào)網(wǎng)英語點(diǎn)津版權(quán)說明:凡注明來源為“中國(guó)日?qǐng)?bào)網(wǎng)英語點(diǎn)津:XXX(署名)”的原創(chuàng)作品,除與中國(guó)日?qǐng)?bào)網(wǎng)簽署英語點(diǎn)津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請(qǐng)與010-84883631聯(lián)系;凡本網(wǎng)注明“來源:XXX(非英語點(diǎn)津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請(qǐng)與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學(xué)習(xí)與研究,如果侵權(quán),請(qǐng)?zhí)峁┌鏅?quán)證明,以便盡快刪除。
 

關(guān)注和訂閱

人氣排行

翻譯服務(wù)

中國(guó)日?qǐng)?bào)網(wǎng)翻譯工作室

我們提供:媒體、文化、財(cái)經(jīng)法律等專業(yè)領(lǐng)域的中英互譯服務(wù)
電話:010-84883468
郵件:[email protected]
 
 
主站蜘蛛池模板: 欧美性videosex18 | 国产三级在线视频播放线 | 亚洲精品久久九九热 | 日韩电影免费在线观看中文字幕 | 99影视在线视频免费观看 | www.av在线| 免费精品美女久久久久久久久久 | 国产精品成人av | 天天射天 | 成人性大片免费观看网站 | 三级黄色片在线免费观看 | 久草久草久草 | 欧美爽爽爽爽爽爽视频 | 欧美1区 | 欧美精品免费在线 | 免费观看黄色a一级视频播放 | 九色亚洲| 亚洲精品久久久久综合中文字幕 | 日本精品区 | 国产福利视频在线观看 | a黄视频| 一级片a | 欧美一级艳片视频免费观看 | 九九九九精品视频在线播放 | 午夜影院网站 | 精品免费国产一区二区三区四区 | 欧美男女交配 | 中文字幕一区二区视频 | 欧美地区一二三区 | 久草在线草a免费线看 | 国产精品一区久久久久 | 日日操天天操夜夜操 | 亚洲精品成人av | 国产精品久久久久久亚洲伦理 | 久久蜜桃亚洲一区二区 | 欧美国产精品一区二区 | 国产欧美在线观看视频 | 毛片在线播放网址 | 亚洲AV久久综合无码东京 | 亚洲AV无码色情第一综合网 | 一级毛片aaaaaa视频免费看 |