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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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