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Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.