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Did you know?
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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The longest a person has survived after a heart transplant is 24 years.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.