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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The Atlantic reports that genetic counselors are coping with an influx of patients seeking advice on their direct-to-consumer genetic test results.

A small study finds differences between three genomic prostate cancer tests, Medscape reports.

In Nature this week: shared genetic architecture for asthma and allergic diseases, and more.

A survey of Canadians finds them to be divided on genetically modified food, the Ottawa Citizen reports.