Good news in HIV protection but more trials necessary

The World
The International AIDS conference in Vienna is underway and there's excitement about a new study showing that there may be a new effective microbicide to help prevent against HIV infection. Science Magazine correspondent, Jon Cohen is at the conference. He says that the microbicide is not ready for general use and that more trials are needed. He also says that this is part of a combination prevention and that condoms and behavioral change are still necessary.
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