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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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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Thyroid conditions may make getting pregnant impossible.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.