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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The average office desk has 400 times more bacteria on it than a toilet.
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 first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.