Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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