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Illicit drug use costs the United States approximately $181 billion every year.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.