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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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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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There are more sensory neurons in the tongue than in any other part of the body.
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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.