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Vaccines prevent between 2.5 and 4 million deaths every year.
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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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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
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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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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.