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Cards In This Set
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What is infection?
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Describes the presence and multiplication within a host of another living organism, with subsequent injury to the host.
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What are the agents of infectious disease?
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Prions, viruses, bacteria, rickettsiaceae and chlamydiaceae, fungi, and parasites.
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What is a host?
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Any organism capable of supporting the nutritional and physical growth requirements of another
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What is colonization?
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Describes the act of establishing a presence, a step required in the multifaceted process of infection.
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What is microflora?
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A multitude of bacteria tha normally and harmlessly inhabit the internal and external exposed surfaces of the human body
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What is virulence?
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Disease producing potential
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What is a pathogen?
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A select group of microorganisms that are so virulent that they are rarely found in the absence of disease.
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What is a saprophyte?
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Harmless microorganisms; free living organisms obtaining their growth from dead or decaying organic material inthe environment.
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The colonizing bacteria acquire nutritional needs and shelter, and the host is not adversely affected by the relationship; an interaction such as this is called .
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Commensalism
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What releationship is one in which only the infection organism benefits from the relationship and the host either gains nothing from the relationship or sustains injury from the interaction.
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Parasitic relationship
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All microorganisms can be pathogens capable of producing an infectious disease when the health and innumity of the host have been severely weakened.
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Opportunistic
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The various prion-associated diseases produce very similar symptomatology and pathology in the host and are collectively called diseases.
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Transmissible neurogenerative
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The smallest obligate intracellular pathogens
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Viruses
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Bacteria are autonomously replicating unicellular organisms known as because they lack an organized nucleus.
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Prokaryotes
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characteristics and microscopic morphology are used in combination to describe bacteria
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Staining
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