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By definition, when a medication is administered intravenously, its bioavailability is 100%.
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
Medication errors are three times higher among children and infants than with adults.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.