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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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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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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.