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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.