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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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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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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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There are more sensory neurons in the tongue than in any other part of the body.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").