|
Author Question: A defect in which one or both testis fails to descend into the scrotum is: A) azoospermia B) ... (Read 68 times) |
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
The average office desk has 400 times more bacteria on it than a toilet.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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.