Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Illicit drug use costs the United States approximately $181 billion every year.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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Excessive alcohol use costs the country approximately $235 billion every year.
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f