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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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The FDA recognizes 118 routes of administration.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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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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Vaccines prevent between 2.5 and 4 million deaths every year.