Difference between revisions of "Host invasion by microorganisms"
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===Introduction=== | ===Introduction=== | ||
One of the main causes of disease is infection by microorganisms, with four types so far identified: | One of the main causes of disease is infection by microorganisms, with four types so far identified: | ||
| − | *Viruses | + | *[[Viruses]] |
| − | *Bacteria | + | *[[Bacteria]] |
| − | *Fungi | + | *[[Fungi]] |
| − | *Parasites- comprising protozoa and helminths | + | *[[Parasites]]- comprising [[protozoa]] and [[helminths]] |
All exist as either: | All exist as either: | ||
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*'''Aerosol''': typically respiratory infections | *'''Aerosol''': typically respiratory infections | ||
*'''Orofecal''':typically enteric infections | *'''Orofecal''':typically enteric infections | ||
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==[[Host Invasion by Microorganisms Flashcards|Host Invasion Flashcards]]== | ==[[Host Invasion by Microorganisms Flashcards|Host Invasion Flashcards]]== | ||
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*http://www.cellsalive.com | *http://www.cellsalive.com | ||
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| + | [[Category:Immunology]] | ||
Revision as of 13:41, 18 August 2010
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Introduction
One of the main causes of disease is infection by microorganisms, with four types so far identified:
All exist as either:
- Primary pathogens (obligate): presence always corresponds with disease
- Secondary (opportunistic): prerequisites must be fulfilled before disease occurs
Microorganisms can enter the body by three routes:
- Contact: typically seen in dermatological infections
- Aerosol: typically respiratory infections
- Orofecal:typically enteric infections
Host Invasion Flashcards
References
- Murphy, K., Travers, P. and Walport, M. (2008) Janeway's Immunobiology. 7th ed. New York: Garland Science Publishing.