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An HIV vaccine that could defeat the virus could undergo human trials in as little as a year's time, scientists say, the Daily Mail reported.

The "mosaic vaccine," which is being designed by an international team, is composed of many sets of synthetic, computer-generated sequences of proteins. These can cue the body's immune system to respond to a variety of HIV mutations.

HIV's ability to evolve rapidly is what allows it evade current drugs.

Bette Korber of the Los Alamos National Laboratory in New Mexico said researchers are in the evolutionary fast lane studying HIV. "If you give just one drug, HIV evolves away from it. That's why treatments involve three or four drugs at once," Korber said.

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艾滋病疫苗即將問世

??????? 英國《每日郵報》報道，科學家稱，可以戰(zhàn)勝致命的艾滋病病毒的疫苗最短一年后就可以進行人體實驗了。

???????這種由一個國際研究小組設計的“拼接疫苗”含有許多由計算機制造的合成蛋白質序列，可以提示身體的免疫系統(tǒng)對艾滋病病毒的一系列變化作出反應。

???????艾滋病病毒變化迅速，所以它可以避開現(xiàn)在的藥物。

???????新墨西哥州洛斯阿拉莫斯國家實驗室的貝蒂·克勃說科學家對艾滋病病毒的研究正取得快速進展。克勃說：“如果你僅僅用一種藥，艾滋病病毒很快就進化了。這就是為什么治療總是需要同時用三四種藥?！?/p>