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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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
X chromosome inactivation in female mammals produces the Barr Body.
Emerging adults often feel adult in some ways but not others.
Major cell types in the human body.
The effects of undernourishment on the body systems.