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Vaccines prevent between 2.5 and 4 million deaths every year.
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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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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Illicit drug use costs the United States approximately $181 billion every year.