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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
There are 60,000 miles of blood vessels in every adult human.
Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.