Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
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The horizontal fraction bar was introduced by the Arabs.
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There are 60,000 miles of blood vessels in every adult human.
Cellular changes associated with short-term and long-term memory in the sea slug.
Invasive species in Canada include (a) zebra mussels, Dreissena polymorpha, (b) sea lamprey, Petromy
Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how