The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
Boundaries within landscapes created by human activity (background) and natural environmental gradie
A true albino squirrel. Note the pink eyes.
True-color image of layers of haze in Titan's atmosphere.