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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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On average, the stomach produces 2 L of hydrochloric acid per day.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.