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'I'm a Doctor, Not a Physicist!'

Always wanted a tricorder? The X Prize Foundation is kicking off a new contest, and this one is to encourage the development of a mobile diagnostic device, reports Katharine Gammon at MIT's Technology Review. While the details of the $10 million Tricorder X Prize are still being hashed out, Gammon says "the goal is likely to be a device that can perform a number of diagnostic tests and combine these with artificial intelligence to determine whether a subject has a particular malady." The contest is to be launched in 2012, though Eric Topol at the Scripps Translational Science Institute tells Gammon that the prize won't be won until a number of technologies, including sequencing and imaging, come together.

The Scan

Missed Early Cases

A retrospective analysis of blood samples suggests early SARS-CoV-2 infections may have been missed in the US, the New York Times reports.

Limited Journal Editor Diversity

A survey finds low diversity among scientific and medical journal editors, according to The Scientist.

How Much of a Threat?

Science writes that need for a provision aimed at shoring up genomic data security within a new US bill is being questioned.

PNAS Papers on Historic Helicobacter Spread, Brain Development, C. difficile RNAs

In PNAS this week: Helicobacter genetic diversity gives insight into human migrations, gene expression patterns of brain development, and more.