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Definition
| the invasion and multiplication of microorganisms in or on the body tissue that produces signs and symptoms as well as an immune response; may not cause illness or may cause severe illness |
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Term
| transmission of infection |
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Definition
| causative agent, infectious reservoir with a portal of exit, mode of transmission, portal of entry into the host, and a susceptible host |
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Definition
| naturally inhabit areas of the body that are exposed to the outside (ex. skin and various organs); important to maintain; risk factor for infection |
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Term
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Definition
| enzymes that can kill microorganisms or microbes; secreted by eyes, nasal passage, glands, stomach, and genitourinary organs; risk factor for infection |
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Definition
| sweeps foreign matter from the airways; risk factor for infection; can be damaged by smoke, dust, etc. |
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Term
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Definition
| when an imbalance develops, the potential for infection increases; risk factors include weakened defense mechanisms, environmental and developmental factors, and pathogen characteristics; risk factor for infection |
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Term
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Definition
| also called immunocompromised; impaired function of WBCs and low levels of T and B cells; can be congenital (genetic defect) or acquired (infection, malnutrition, chronic stress, pregnancy, chronic disease, or medication); result is same regardless of the cause |
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Term
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Definition
the range of hosts a microbe is attracted to
the range of hosts a microbe is attracted to; ex. is it only found in humans? or is it only found in animals? |
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Term
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Definition
| a microbes ability to invade and multiply; also has to do with your stress level, immune response, etc. |
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Term
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Definition
| the number of microbes that invade and multiply; ex. you might only need one to cause disease or 20,000 to cause a disease |
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Term
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Definition
| the severity of disease a pathogen can produce; ex. cold vs. pneumonia |
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Term
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Definition
| a pathogen's ability to damage the host |
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Term
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Definition
| the ability of the pathogen to attach to host tissue |
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Term
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Definition
| degree of immune response a pathogen can induce |
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Term
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Definition
| the ability of a pathogen to survive outside of a host; ex. HIV cannot survive while TB can |
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Term
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Definition
| 1st stage of infection; ranges from instantaneous to years; ex. can be exposed to TB or hepatitis years and years before symptoms appear |
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Term
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Definition
| 2nd stage of infection; contagious host vague complaints; patient becomes contagious before having a fever/becoming ill |
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Term
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Definition
| 3rd stage of infection; microbes invading and destroying; complaints are more specific |
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Term
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Definition
| 4th stage of infection; body's defense mechanisms have invading pathogen under control; healing of damaged tissue begins |
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