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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.
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Cyanide works by making the human body unable to use oxygen.