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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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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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Vaccines prevent between 2.5 and 4 million deaths every year.
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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
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In 1864, the first barbiturate (barbituric acid) was synthesized.