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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 most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
The familiar sounds of your heart are made by the heart's valves as they open and close.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.