Term
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Definition
| the introduction into the body of a weakened cell |
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Definition
| body becomes immune to a disease |
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Term
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Definition
| when more people in a particular population get a disease |
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Term
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Definition
| when a disease outbreak is global or over large areas of the world |
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Term
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Definition
| a disease causing agent usually a virus bacteria fungi or living organism |
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Term
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Definition
| a small infectious agent that only can replicate inside the cells of a living organism |
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Term
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Definition
| a large group of microorganisms , less complex than eukaryotes |
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Term
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Definition
| are substances , usually proteins or polysaccharides that cause the body to produce antibodies |
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Term
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Definition
| protects the body from disease |
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Term
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Definition
| white blood cells that surrounds and engulfs invaders setting off an immune response |
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Term
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Definition
| oval shaped organ of the lymphatic system |
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Term
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Definition
| white blood cells that includes natural killer cells |
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Term
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Definition
| cells that attack infected cells |
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Term
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Definition
| cells that make antibodies or protiens |
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Term
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Definition
| t cells and b cells that remain in the body for years |
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Term
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Definition
| a disease that can spread from contact with an infected person |
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Term
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Definition
| smallest structural and functional unit of an organism |
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