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Asthma cases in Americans are about 75% higher today than they were in 1980.

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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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Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

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Cyanide works by making the human body unable to use oxygen.

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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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