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Asthma cases in Americans are about 75% higher today than they were in 1980.
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There are more bacteria in your mouth than there are people in the world.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
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Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.