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Did you know?
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
Did you know?
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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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.