An artist on Rio de Janeiro's Copacabana beach puts the final touches on a sand sculpture of the assassin bug, which spreads Chagas disease. The sculpture was part of an event in 2009 commemorating the 100th anniversary of the discovery of the disease. Vanderlei Almeida/AFP/Getty Images hide caption

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Be Here Now: Meditation For The Body And Brain

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A nurse weighs an Afghan child at a U.S.-funded clinic in Farza, Afghanistan, in September. A new U.S.-sponsored survey shows dramatic gains in life expectancy and other aspects of health care in Afghanistan. But some experts are questioning the accuracy of the results. John Moore/Getty Images hide caption

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Gains In Afghan Health: Too Good To Be True?

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An Indian boy receives a polio vaccination from an Indian health worker in Amritsar last year. Narinder Nanu/AFP/Getty Images hide caption

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India Marks A Year Free Of Polio

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A Doctor Tells All in 'Confessions Of A Surgeon'

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New Tuberculosis Strain Thwarts All Antibiotics

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An image of Mycobacterium tuberculosis bacteria captured with an electron microscope. CDC hide caption

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TB That Resists All Drugs Is Found In India

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Debate Persists Over Publishing Bird Flu Studies

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Year in Review: Science Stories of 2011

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The War On Cancer Turns 40

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Snake handler Subhendu Malllik holds up an Indian baby cobra hatchling after it emerged from an egg on the outskirts of Bhubaneswar, India, in June. The venomous snake is indigenous to South Asia. Asit Kumar/AFP/Getty Images hide caption

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Hitting The 'Off' Switch On Antibiotic Resistance

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