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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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People about to have surgery must tell their health care providers about all supplements they take.
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In 1864, the first barbiturate (barbituric acid) was synthesized.