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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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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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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.