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FoundationsVIII

Infection Control & Prevention Ch. 31

QuestionAnswer
Infection Invasion of susceptible host by pathogens or microorganisms resulting in disease
Communicable disease Infectious disease can be transmitted directly from one person to another
Colonization Microorganisms are present but do not produce disease signs and symptoms
Chain of infection Infectious agent, Reservoir, Portal of exit, Mode of Transmission, Portal of entry, Susceptible host
Microorganisms Living body which cannot be seen by the naked eye
Pathogens Microorganisms which normally cause disease
Locations where organisms can live and multiply A host (human or animal), Insect, Food or water, Organic matter (puss), Inanimate surface (fomite-any inanimate object or substance capable of carrying infectious organisms and hence transferring them from one individual to another.)
Portals of exit Skin, mucous membranes, respiratory tract, GI tract, reproductive tract, blood
Modes of Transmission Contact (Direct, Indirect, Droplet), Airborne, Vehicles (Water, Drugs, Blood, Food), Vector (Mosquito, Louse, Tick, Flea)
Portal of Entry Same ways that organisms leave the host, Body openings, Breaks in skin, Body fluids, On dirty fingers/objects.
Reservoir Place where microorganisms survive, multiply, and wait to transfer to susceptible host
Reservoir Characteristics Food available, Moisture, Aerobes, Anaerobes, Temperature favorable, pH range 5-8, Dark
Inflammatory response Protective reaction that neutralizes pathogens and repairs body cells
Inflammation A protective vascular reaction that delivers fluid, blood products, and nutrients to interstitial tissues in an area of injury
Immune response When a foreign material (antigen) enters the body, a series of responses changes teh body's biological makeup. The
Created by: maggardba
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