Researchers have found that when bottles of sanitizer and wipes were kept around schools and students were cued to use them, they ended up missing significantly fewer days due to stomach bugs. /iStockphoto.com hide caption

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Pharmacist Kristy Hennessee administers a vaccination against whooping cough at a Walgreen's pharmacy in Pasadena, Calif. last year. Robyn Beck/AFP/Getty Images hide caption

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Judith Ursitti is a Massachusetts mother of two children with autism spectrum disorders. Her son, Jack, 7, has severe autism, while her daughter, Amy (not pictured), who is 11, has Asperger's. Richard Knox/NPR hide caption

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A new fetal DNA test to determine a baby's gender could be more accurate and faster than an ultrasound, researchers say. André Panneton/iStockphoto.com hide caption

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When it comes to potty training advice, pediatricians don't have much science to look to. iStockphoto.com hide caption

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Pediatricians recommend that kids acclimatize to the the heat by taking it easy the first two weeks of practice. iStockphoto.com hide caption

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Mothers might not realize that the tastes and flavors they savor while pregnant can influence their babies' palates later. Maggie Starbard/NPR hide caption

itoggle caption Maggie Starbard/NPR