Difference between revisions of "Host invasion by microorganisms"
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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: | ||
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*'''Orofecal''':typically enteric infections | *'''Orofecal''':typically enteric infections | ||
| + | ===[[Viruses - WikiBlood|Viruses]]=== | ||
| − | =[[ | + | ===[[Bacteria - WikiBlood|Bacteria]]=== |
| − | =[[ | + | ===[[Parasites - WikiBlood|Parasites]]=== |
| − | = | + | ===[[Fungi - Wikiblood|Fungi]]=== |
| − | + | ===References=== | |
| − | =[[Fungi - Wikiblood|Fungi]]= | ||
| − | =References= | ||
*<div id="Janeway">{{citation|initiallast = Murphy|initialfirst = K|2last = Travers|2first = P|finallast = Walport|finalfirst = M|year = 2008|title = Janeway's Immunobiology|ed = 7th |city = New York|pub = Garland Science Publishing}}</div> | *<div id="Janeway">{{citation|initiallast = Murphy|initialfirst = K|2last = Travers|2first = P|finallast = Walport|finalfirst = M|year = 2008|title = Janeway's Immunobiology|ed = 7th |city = New York|pub = Garland Science Publishing}}</div> | ||
Revision as of 16:58, 5 September 2008
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Introduction
One of the main causes of disease is infection by microorganisms, with four types so far identified:
- Viruses
- Bacteria
- Fungi
- Parasites- comprising protozoa and helminths
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
Viruses
Bacteria
Parasites
Fungi
References
- Murphy, K., Travers, P. and Walport, M. (2008) Janeway's Immunobiology. 7th ed. New York: Garland Science Publishing.