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Did you know?
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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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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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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There are 60,000 miles of blood vessels in every adult human.
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There are more bacteria in your mouth than there are people in the world.