University Medical Center New Orleans on Aug. 1, when the $1 billion facility welcomed its first patients. Brett Duke/The Times-Picayune/Landov hide caption

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Dyha Gresham (front, left), her older sister Briceshanay (in back) and Briceshanay's daughter Uri stand in their New Orleans home with the family's cat Sugar-Pepper and dog Selena. After Katrina, Briceshanay says, she relied on theater and the arts to help her "move through terrible and difficult times." Edmund D. Fountain for NPR hide caption

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Lorenzo Gritti for NPR

The varicella zoster virus causes chickenpox in children, then lurks in the body for years and can cause painful shingles later in life. James Cavallini/Science Source hide caption

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Solid information on the risks of medications during pregnancy is often hard to come by. iStockphoto hide caption

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Ten-year-old Jake Herrera and his Los Angeles team run around the diamond as a warmup for baseball practice. Benjamin B. Morris for NPR hide caption

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Keith Negley for NPR

Painting iStockphoto hide caption

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