Vaccines prevent between 2.5 and 4 million deaths every year.
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There are more bacteria in your mouth than there are people in the world.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Illicit drug use costs the United States approximately $181 billion every year.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
Single atoms form the nodes of an elementary quantum network
Glaucoma. (a) A buildup of pressure within the eye cavities, often caused by a blockage of vessels t
Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into
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