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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.