Virus May Block HIV’s Destructive Power

Friday, February 14th, 2003

Some viruses are friendly. Sometimes. According to Virus May Block HIV’s Destructive Power, the fairly harmless GB virus C blocks HIV:

An ancient virus that has tagged along harmlessly through human evolution appears to improve people’s chances of surviving AIDS by blocking HIV’s ability to infect blood cells, new research shows.

Several recent studies have found that people who are infected with the recently discovered bug, called GB virus C, are substantially less likely than usual to die from AIDS. Experts assumed that GBV-C somehow interferes with HIV, but just how this protection works has been a mystery.

Now experts think they have the answer: It thwarts HIV’s ability to infect cells by wiping away one of the chemical docking posts that HIV needs to make its entry.

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