人类首次成功研制“艾滋疫苗” 感染率下降31%

人类首次成功研制“艾滋疫苗” 感染率下降31%
http://www.dayoo.com http://www.dayoo.com 2009-10-02 06:55 来源：法制晚报

　　人类首次成功研制“艾滋疫苗”

　　美泰两国合作开发　此疫苗可使艾滋病感染率降31.2% 世卫组织称结果“令人鼓舞”

　　据美国媒体报道，美国和泰国研究人员24日共同宣布，双方合作开发试验的一种“联合疫苗”可以将人体感染艾滋病病毒的风险降低31.2%。

　　这是人类首次获得具有免疫效果的艾滋病疫苗。

　　试验证明艾滋病疫苗有效

　　据报道，这种“联合疫苗”由两种疫苗组成，其中一种负责刺激免疫系统，第二种则负责增强免疫反应。

　　“联合疫苗”试验始于2003年10月，试验对象是在泰国选取的1.6万多名年龄在18岁至30岁的志愿者，其艾滋病病毒检测均为阴性。

　　结果显示，在8197名接受疫苗注射的志愿者中，51人感染了艾滋病病毒，而在对照组的8198人中，有74人感染，即注射疫苗组感染风险降低了31.2%。

　　此前疫苗研发“屡战屡败”

　　在此之前，还没有任何一种疫苗能取得这样的免疫效果。自1983年人类发现艾滋病病毒以后的近30年间，各国科研人员在开发艾滋病疫苗方面可谓“屡战屡败”。

　　统计数据显示，2007年全球有200万人死于艾滋病，而目前每天新增的艾滋病病毒感染人数多达7500人。有科学家甚至一度认为，人类可能永远无法找到有效的艾滋病疫苗。

　　意义重大首次证明疫苗可防艾滋病

　　此次，美国和泰国研究人员完成的是迄今最大规模的艾滋病疫苗试验，且取得“突破性”结果，美国媒体报道称，这表明，成功研发出有效的艾滋病疫苗完全可能，人类击败“世纪瘟疫”大有希望。

　　世界卫生组织和联合国艾滋病规划署当天发表联合声明表示，由美国和泰国开发试验的新型艾滋病疫苗获得的结果“令人鼓舞”，这一代表重大科学进步的试验结果首次表明，通过疫苗是可以在普通成年人中预防感染艾滋病病毒的，其意义重大。

　　不过，参与研究的美国国家过敏和传染病研究所所长安东尼·福奇审慎地说，这并非“终点”，他对进一步提高疫苗的免疫效果表示乐观。

　　综合报道/记者刘晓雪

The first successful human development of the "HIV vaccine" infection rates decreased by 31%
http://www.dayoo.com http://www.dayoo.com 2009-10-02 06:55 Source: Legal Evening News

The first successful human development of the "AIDS vaccine"

The United States and Thailand between the two countries to develop this new vaccine can lower HIV infection rates 31.2% of the WHO, said the results "encouraging"

According to U.S. media reports, the U.S. and Thai researchers announced on the 24th, the two sides co-development and testing of a "vaccine" can the human body reduce the risk of HIV infection 31.2%.

This is the first time with the immune effect of the human AIDS vaccine.

Proved an effective AIDS vaccine trial

It is reported that this "combined vaccine" formed by the two vaccines, one of which is responsible for stimulating the immune system, the second is responsible for the enhanced immune response.

"Combined vaccine" trial began in October 2003 the test object is selected in Thailand, more than 16000 aged 18 to 30 years old volunteers, their HIV testing were negative.

The results showed that in 8197 vaccinated volunteers, 51 people were infected with HIV, while in the control group of 8198 people, 74 people infected, or vaccinated group 31.2% lower risk of infection.

Prior to vaccine development, "conspicuous failure"

Prior to this, there is no vaccine can achieve such an immune effect. Since 1983, the human AIDS virus was found after nearly 30 years, countries in the development of AIDS vaccine researchers, has a "conspicuous failure."

Statistics show that in 2007 the world's 200 million people died of AIDS, and the present day, the number of new HIV infections up to 7500 people. Some scientists have even said that human beings may never be able to find an effective AIDS vaccine.

The first demonstration of significant anti-AIDS vaccine

This time, the United States and Thailand, researchers accomplished is by far the largest HIV vaccine trial, and to achieve a "breakthrough" results, the U.S. media reported, which indicates that successfully developed an effective HIV vaccine may well, human beat "century plague "promising.

World Health Organization and UNAIDS issued a joint statement the same day by the United States and Thailand, development and testing of new AIDS vaccine results "encouraging", the representatives of major scientific progress in test results for the first time that vaccine can be In the average adult HIV infection prevention, and its great significance.

However, participated in the study of the U.S. National Institute of Allergy and Infectious Diseases Director Anthony Fauci careful to say that this is not the "finish", he further enhance the immune effect of the vaccine expressed optimism.

Roundup / reporter Xiao-Xue Liu