Term
| Stedman's Definition of Disease |
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Definition
| morbus; illness; sickness; and interruption, cessation of disorder of body functions |
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Term
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Definition
- a recognized etiologic agent
- an identifiable group of signs and symptoms
- consistent anatomical alterations |
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Term
| Infectious Disease (Stedman's) |
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Definition
| - one resulting from the presence and activity of a microbial agent |
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Term
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Definition
- microbe must be present in every case of the disease
- microbe must be isolated from the diseased host and grown in pure culture
- disease must be reproduced when a pure culture is introduce into a non-diseased susceptible host
- microbe must be recoverable from an experimentally infected host |
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Term
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Definition
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Term
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Definition
- fungi
- protozoa
- protists, microscopic worms, arthropods |
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Term
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Definition
- aka resident, commensal or normal flora
- bacteria, fungi, viruses, protozoans, other protists and and a mite
- occupy all body surfaces and orifices |
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Term
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Definition
| - life form that lives on or in another life form |
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Term
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Definition
- organism that lives on dead organic matter
- fungi on humans (dead skin) |
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Term
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Definition
- organism that has capacity to cause disease
- true, primary, frank, strict |
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Term
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Definition
| - ability of microorganism to cause disease |
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Term
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Definition
| - degree of pathogenicity or the likihood of causing disease |
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Term
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Definition
| - organism that lives on or within another organism from which it derives benefit but neither injures nor benefits |
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Term
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Definition
| - relationship between two or more organisms which is mutually beneficial |
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Term
| Synergistic Bacterial Reaction |
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Definition
- positive reaction
- produce substances utilized by other species
- ex: lactic acid produced by strep utilized by veillonella on tongue |
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Term
| Antagonistic Bacterian Reaction |
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Definition
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Term
| Advantages of normal flora |
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Definition
- preven colonization
- release substances of metabolic value for host
- antigenic stimulation important to normal development of immune system
- provides some energy for development |
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Term
| Disadvantages of Normal Flora |
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Definition
| - opportunistic infections occur when bacteria spreads into sterile area |
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Term
| Steps for Infectious Microorganisms |
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Definition
- attachment/entry
- local/general spread
- multiplication
- evasion of host defenses
- shedding from body/exit
- cause damage to host (not STRICTLY necessary) |
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Term
| Pathogenic properties of Bacteria |
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Definition
- ability to produce endotoxins
- endotoxin of gram (-) cell wall
adhesions and pili to enhance attachment
- capsules to avoid phagocytosis |
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