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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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By definition, when a medication is administered intravenously, its bioavailability is 100%.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

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