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发帖数: 1402 | 1 For the first time, a vaginal gel has proved capable of blocking the AIDS
virus: It cut in half a woman's chances of getting HIV from an infected
partner in a study in South Africa. Scientists called it a breakthrough in
the long quest for a tool to help women whose partners won't use condoms.
The results need to be confirmed in another study, and that level of
protection may not be enough to win approval of the microbicide gel in
countries like the United States, researchers say. But they are o |
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