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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.
The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
![The American Lion was one of the abundant Pleistocene megafauna, a wide variety of very large mammal](https://biology-forums.com/gallery/47/medium_27673_23_04_12_4_30_01.jpeg)
![The grand opening of the huge Miraflores lock on the Panama Canal in October, 1914. The locks were b](https://biology-forums.com/gallery/47/medium_6_02_03_16_7_45_22_234071402.jpeg)