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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.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
More than 4.4billion prescriptions were dispensed within the United States in 2016.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.