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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.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.