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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.