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The longest a person has survived after a heart transplant is 24 years.
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
There are more bacteria in your mouth than there are people in the world.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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