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Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
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?
The average adult has about 21 square feet of skin.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.