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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.