That's What You Call a Double Whammy

Jan 28, 2008

A recent article in Nature News describes how Leonid Margulis was trying to grow HIV in tonsil tissue infected with herpes, but he couldn't sustain the HIV infection. (Co-infection seems to accelerate HIV progression in people.) This strain of herpes (HHV-6) blocks the CCR5 receptors that HIV uses to enter cells -- exerting a selective pressure on HIV that makes it more virulent.

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