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Food-borne illnesses hold steady in U.S.

Cases of food-borne illnesses, including infections such as salmonella and Escherichia coli that have been at the center of recent outbreaks, have held steady for the past four years, federal health officials said today...

April 9, 2009 — Jordan Lite

FDA to review risky old medical devices

Twenty-five high-risk medical devices that hit the market more than 33 years ago – and are still in use today – were never subjected to scientific scrutiny by the U.S.

April 9, 2009 — Katherine Harmon

Adults store calorie-burning brown fat

A new study confirms that calorie-burning tissue called brown fat once believed to be present only in infants is actually relatively common in adults – at least in slender ones.

April 9, 2009 — Coco Ballantyne

10 most endangered rivers ranked

Is your local river among those flowing merrily along, or is its health threatened by development plans? A conservation group has issued a new report ranking the 10 rivers most at risk this year of becoming flooded or their habitats threatened because of industrial activity...

April 9, 2009 — Jordan Lite

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Scientific American Unlimited

Scientific American Unlimited