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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.
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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
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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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The human body produces and destroys 15 million blood cells every second.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.