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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Green tea is able to stop the scent of garlic or onion from causing bad breath.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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