Term
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Definition
| an organism capable of causing disease in its host |
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Term
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Definition
| any organism that harbors another organism |
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Term
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Definition
| living together of 2 different kinds of organisms |
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Term
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Definition
| form of symbiosis in which 2 organisms of different species live in a relationship that benefits both of them |
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Term
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Definition
| symbiotic relationship in which one organism, the parasite, benefits from the relationship, whereas the other organism, the host, is harmed by it |
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Term
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Definition
| organisms that lives in or on, and at the expense of, another organism, the host |
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Term
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Definition
| symbiotic relationship in which one organism benefits and the other one neither benefits nor is harmed by the relationship |
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Term
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Definition
| presence of microorganisms on inanimate objects or surfaces of the skin and mucous membranes |
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Term
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Definition
| multiplication of a parasite organism, usually microscopic, within or upon the host's body |
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Term
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Definition
| presence of helminths or arthropods in or on a living host |
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Definition
| disturbance in the state of health wherein the body cannot carry out all its normal functions |
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Term
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Definition
| the capability to produce disease |
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Term
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Definition
| the degree of intensity of the disease produced by a pathogen |
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Term
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Definition
| rapid transfer of a pathogen through animal of a species susceptible to infection by the pathogen |
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Term
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Definition
| the weakening of the disease-producing ability of an organism |
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Term
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Definition
| lab technique in which a pathogen is passed from its normal host sequentially through many individual members of a new host species, resulting in a lessening or even total loss in its virulence in the original host |
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Term
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Definition
| microorganisms that live on or in the body but do not usually cause disease |
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Term
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Definition
| species of microorganisms that are always present on or in an organism |
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Term
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Definition
| microorganisms that may be present in or on an organism under certain conditions and for certain lengths of time at sites where resident microbiota are found |
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Term
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Definition
| species of resident or transient microbiota that does not ordinarily cause disease but can do so under certain conditions |
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Term
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Definition
| ability of normal microbiota to compete with pathogenic organisms and in some instances to effectively combat their growth |
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Term
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Definition
| individual whose immune defenses are weakened due to fighting another infectious disease |
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