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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
There are approximately 3 million unintended pregnancies in the United States each year.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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.
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).