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Did you know?
To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.
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Illicit drug use costs the United States approximately $181 billion every year.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.