Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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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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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The average office desk has 400 times more bacteria on it than a toilet.
In this 1900 cartoon, oil baron John D. Rockefeller holds the White House in the palm of his hand wh
fter J. M. W. Turner, Snow Storm: Steamboat off a Harbor's Mouth (1842), engraved by R. ...
The oral cavity: (A) sagittal section; (B) anterior view as seen through the open mouth.