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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
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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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Blood is approximately twice as thick as water because of the cells and other components found in it.