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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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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.