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VOA慢速英语 2008 0331a

时间:2008-05-29 06:31来源:互联网 提供网友:jirisheng   字体: [ ]
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Development Report - AIDS: The Future of a Vaccine1, and New Warnings for Asia
A study says the number of Asians with H.I.V. could double to 10 million by 2020 unless prevention efforts expand. And scientists meet in the U.S. to discuss the latest setbacks in developing an AIDS vaccine. Transcript2 of radio broadcast:
30 March 2008

This is the VOA Special English Development Report.

A new study says Asia must do more to prevent AIDS, or the number of people infected with H.I.V. could double by two thousand twenty.
 

Seven-year-old AIDS patient in Bangkok, Thailand

Today about five million people in Asia are living with the virus that causes AIDS.

An estimated three hundred thousand people died of H.I.V.-related diseases in Asia last year. At current rates, that number could rise to almost five hundred thousand.

The United Nations program on H.I.V./AIDS requested the study, led by Indian economist3 Chakravarthi Rangarajan.

The report says three main groups are driving the spread of AIDS in Asia. One group is sex workers and the men who use them. Another is injection drug users who share needles. And the third group are men who have unprotected sex with other men.

Researchers estimate that as many as ten million women in Asia sell sex. At least seventy-five million men buy on a regular basis. In many Asian countries, these men, and their female partners, represent the largest group of people living with H.I.V.

The study found that AIDS is the most likely cause of death and lost work days for people in Asia between the ages of fifteen and forty-four.

The report says prevention programs can be effective if governments invest at least thirty cents a year per person.

For more than twenty years, scientists have been trying to develop a vaccine to prevent H.I.V. infection. The latest failures came last September. Researchers halted two studies of an experimental AIDS vaccine from the drug company Merck.

Early results showed that the vaccine not only failed to protect, it appeared to put some people at higher risk of infection.

Last Tuesday, several hundred researchers and activists4 met in Bethesda, Maryland, for a Summit on H.I.V. Vaccine Research and Development. They debated what to do now.

Many of the scientists agreed that experimental vaccines5 should continue to be tested on humans. But many said there should be less dependence6 on human trials.

Anthony Fauci is head of the National Institute of Allergy7 and Infectious Diseases, which called the meeting. He and others said there should be more tests on animals, to add to discoveries from human studies.

There also were calls for a return to more basic science, first identifying and answering major scientific questions. But Doctor Fauci said the search for an AIDS vaccine will not stop.

And that’s the VOA Special English Development Report, written by Jill Moss8.


点击收听单词发音收听单词发音  

1 vaccine Ki1wv     
n.牛痘苗,疫苗;adj.牛痘的,疫苗的
参考例句:
  • The polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
  • She takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。
2 transcript JgpzUp     
n.抄本,誊本,副本,肄业证书
参考例句:
  • A transcript of the tapes was presented as evidence in court.一份录音带的文字本作为证据被呈交法庭。
  • They wouldn't let me have a transcript of the interview.他们拒绝给我一份采访的文字整理稿。
3 economist AuhzVs     
n.经济学家,经济专家,节俭的人
参考例句:
  • He cast a professional economist's eyes on the problem.他以经济学行家的眼光审视这个问题。
  • He's an economist who thinks he knows all the answers.他是个经济学家,自以为什么都懂。
4 activists 90fd83cc3f53a40df93866d9c91bcca4     
n.(政治活动的)积极分子,活动家( activist的名词复数 )
参考例句:
  • His research work was attacked by animal rights activists . 他的研究受到了动物权益维护者的抨击。
  • Party activists with lower middle class pedigrees are numerous. 党的激进分子中有很多出身于中产阶级下层。 来自《简明英汉词典》
5 vaccines c9bb57973a82c1e95c7cd0f4988a1ded     
疫苗,痘苗( vaccine的名词复数 )
参考例句:
  • His team are at the forefront of scientific research into vaccines. 他的小组处于疫苗科研的最前沿。
  • The vaccines were kept cool in refrigerators. 疫苗放在冰箱中冷藏。
6 dependence 3wsx9     
n.依靠,依赖;信任,信赖;隶属
参考例句:
  • Doctors keep trying to break her dependence of the drug.医生们尽力使她戒除毒瘾。
  • He was freed from financial dependence on his parents.他在经济上摆脱了对父母的依赖。
7 allergy 8Vpza     
n.(因食物、药物等而引起的)过敏症
参考例句:
  • He developed an allergy to pollen.他对花粉过敏。
  • The patient had an allergy to penicillin.该患者对青霉素过敏。
8 moss X6QzA     
n.苔,藓,地衣
参考例句:
  • Moss grows on a rock.苔藓生在石头上。
  • He was found asleep on a pillow of leaves and moss.有人看见他枕着树叶和苔藓睡着了。
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