The New York Times reports on concerns in the biomedical community about what to do as our ability to detect tumors improves -- to the point where even the slightest number of cancerous cells will send up the alarm. As genomic tests advance, sensitivity will only increase -- but what does that mean for patients who may be treated for cancer when really they're quite healthy? From the article:

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A new study in JAMA finds that genetic tests might not be able to determine what diet is right for someone seeking to lose weight.

A genome-wide association study that linked common genetic variants to salivary gland carcinoma risk has been retracted, according to Retraction Watch.

Vampire bats' ability to live off blood is etched in their genomes and gut microbiomes, the Scientist reports.

In Genome Biology this week: peopling of the Sahara, epigenetic reprogramming analysis of liverwort, and more.