AIDS vaccine put to 2nd-stage clinical trial |
文章来源： 文章作者： 发布时间：2007-10-24 03:03 字体： [ 大 中 小] 进入论坛 |
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Chinanews, Changchun, Oct 23 – China has completed the first-stage clinical research work on its AIDS vaccine1. The work, the first of such kind officially approved by the State Drug Administration, has now entered into the second-stage clinical trial period.
During the second stage, the Changchun Baike Pharmaceutical2 Company, a medical body responsible for the research, will try to improve the immune intensity3 of the vaccine, based on the scientific findings it has made earlier. The pharmaceutical company will also try to include more diversified4 groups of people to take the vaccine as volunteers, so as to test the vaccine's immune antigenicity and make sure that the vaccine is safe to more people. Scientists will see how long the specific immune reaction will last. They will also try to solve the problems emerging during the first stage by adjusting the vaccine dosage and the vaccine-taking procedure, said a researcher at the Changchun Baike Pharmaceutical Company on Monday.
In the 1990s, China kicked off the research work on AIDS vaccination5. Many scientific bodies in China participated in the work. By 2006, Changchun Baike Pharmaceutical Company had made a breakthrough in its research work on AIDS vaccination. Later, the company successfully completed the first stage of its research work. From March 12, 2005 to June 11, 2006, 49 volunteers took the AIDS vaccine for the first-stage clinical test. Scientists later closely watched their reactions to the vaccine for 180 days. During the 180 days of observation period, scientists found that no volunteers had displayed any serious side effects from the vaccine. Scientists also found that vaccine takers could have specific cell immune response to the vaccine 15 days after they took it.
The antigen gene6 for the AIDS vaccine produced by Changchun Baike Pharmaceutical Company was chosen from the AIDS virus strain commonly seen among Chinese people. So the vaccine is more applicable to the Chinese people. The completion of the first-stage clinical research work on the AIDS vaccine shows that China's research work in this field has reached advanced international level, experts at Changchun Baike said.
点击  收听单词发音
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1
vaccine
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| 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。
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2
pharmaceutical
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| adj.药学的，药物的；药用的，药剂师的 |
参考例句： |
- She has donated money to establish a pharmaceutical laboratory.她捐款成立了一个药剂实验室。
- We are engaged in a legal tussle with a large pharmaceutical company.我们正同一家大制药公司闹法律纠纷。
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3
intensity
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| n.强烈，剧烈；强度；烈度 |
参考例句： |
- I didn't realize the intensity of people's feelings on this issue.我没有意识到这一问题能引起群情激奋。
- The strike is growing in intensity.罢工日益加剧。
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4
diversified
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| adj.多样化的，多种经营的v.使多样化，多样化( diversify的过去式和过去分词 )；进入新的商业领域 |
参考例句： |
- The college biology department has diversified by adding new courses in biotechnology. 该学院生物系通过增加生物技术方面的新课程而变得多样化。 来自《简明英汉词典》
- Take grain as the key link, develop a diversified economy and ensure an all-round development. 以粮为纲，多种经营，全面发展。 来自《现代汉英综合大词典》
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5
vaccination
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| n.接种疫苗，种痘 |
参考例句： |
- Vaccination is a preventive against smallpox.种痘是预防天花的方法。
- Doctors suggest getting a tetanus vaccination every ten years.医生建议每十年注射一次破伤风疫苗。
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6
gene
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| n.遗传因子，基因 |
参考例句： |
- A single gene may have many effects.单一基因可能具有很多种效应。
- The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。
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