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Vaccines prevent between 2.5 and 4 million deaths every year.
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.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
There are more bacteria in your mouth than there are people in the world.
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
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