Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
Woman doing housework
Homeless woman with her possessions on a park bench in Beverly Hills, California. The contrast ...
The Wisconsin Card Sorting Test. This woman is just starting the test. If she places the first card ...
Head of A Woman
Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme
A partial pedigree of a woman with the Bombay phenotype