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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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There are more bacteria in your mouth than there are people in the world.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.