In India, it's quite common to be misdiagnosed with tuberculosis by unreliable health care workers at community clinics using less-than-accurate blood tests, says The New Yorker's Michael Specter. When these misdiagnosed patients take the antibiotics they're required to take for six months, they actually end up waking up any latent TB infection, only they've also made the TB drug resistant, and have a higher chance of passing it on to others and dying from it.

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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.