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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.
As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
Your heart beats over 36 million times a year.
According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.