|
|
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.