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Did you know?
The human body produces and destroys 15 million blood cells every second.
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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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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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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.