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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.