This Week in Nature

In this week's Nature, a team led by University of Arizona researchers describes the arrival of HIV to New York City around 1970 and used a combination of historical data and genomic analyses to clear the name of a man previously identified as the source of the disease in North America.

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The Seattle Times writes that pharmacogenomics testing can help choose medications that may work best for people with depression.

Researchers report that deleting one gene from butterflies affects their wing coloration patterns, according to the Washington Post.

In PNAS this week: genome sequencing of weevil symbionts, retinoid X receptor deletion in lung cancer metastasis, and more.

Sequencing could help combat foodborne illnesses, according to a blog post by Food and Drug Administration officials.