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Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
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.