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Take a look at the influenza virus under a microscope and you'll see a funny-looking spiked ball, much like the famous Russian satellite Sputnik. But if you've ever been flat on your back with the flu, you know there's nothing funny about this highly contagious virus. Test your savvy by taking this quiz.
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Test your knowledge of childhood health.
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Hearing loss can occur for many reasons. Sometimes it occurs as people age. Sometimes it occurs after a long exposure to loud sounds. Learn more about hearing and hearing loss by taking this quiz.
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Reye's syndrome is a disease that affects all the organs, but causes the most harm to the brain and the liver. The disease was first officially identified more than 40 years ago, by a doctor in North Carolina, although it has been around for at least 70 years. Find out more about the disease by taking this quiz, based on information from the National Institute of Neurological Disorders and Stroke (NINDS) and the American Liver Foundation (ALF).
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Test your knowledge of what it takes to be a healthy teen.
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