The first human has died from the H10N8 avian flu virus, which has only been detected in birds until now. Take a look at history's four main flu outbreaks.
The Spanish flu came on quickly. Some people felt fine in the morning but died by nightfall. People who caught the Spanish Flu but did not die from it often died from complications caused by bacteria, such as pneumonia.
The following five celebrity urban legends will likely live on long into the future, despite the fact that none of them is remotely true.
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With Tony Danza marking his 63rd birthday on Monday, join us for a look at what he and the rest of the cast of "Who's the Boss?" are up to today.