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Did you know?
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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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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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.