Infection Control and Prevention

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Infection prevention

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The set of methods practiced in healthcare facilities to prevent and control the spread of disease.

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Microorganism (MO)

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A living thing or organism that is so small it can be seen only under a microscope; also called a microbe.

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Infection

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The state resulting from pathogens invading the body and multiplying.

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Pathogens

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Microorganisms that are capable of causing infection and disease.

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Localized infection

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An infection that is limited to a specific location in the body and has local symptoms.

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Systemic infection

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An infection that travels through the bloodstream and is spread throughout the body, causing general symptoms.

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Healthcare-associated infection (HAI)

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An infection acquired in a healthcare setting during the delivery of medical care.

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Chain of infection

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A way of describing how disease is transmitted from one human being to another.

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Causative agent

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A pathogenic microorganism that causes disease.

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Reservoir

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A place where a pathogen lives and multiplies.