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Did you know?
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.