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Vaccines prevent between 2.5 and 4 million deaths every year.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Cyanide works by making the human body unable to use oxygen.
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Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.
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