Article: Antibodies May Lead to Protection Against HIV

Some long-term survivors of HIV infection produce rare and extremely potent antibodies that keep the disease from progressing to AIDS, and might point to a way to protect uninfected people from the virus, researchers reported yesterday in the closing hours of the 17th International AIDS Conference in Mexico City.

The antibodies, against a particular part of a much-studied HIV protein called gp120, might prove useful as a microbicide for blocking infection during sexual intercourse. If researchers could find a way to prompt the immune system to make its own supply of the antibodies before encountering the virus, they would have a vaccine.

"I think the road is long before we reach that ...

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