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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
There are more sensory neurons in the tongue than in any other part of the body.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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