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Did you know?
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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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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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.