Difference between revisions of "Host invasion by microorganisms"
Jump to navigation
Jump to search
Rjfrancisrvc (talk | contribs) |
Rjfrancisrvc (talk | contribs) |
||
| Line 7: | Line 7: | ||
*[[Parasites]]- comprising [[protozoa]] and [[helminths]] | *[[Parasites]]- comprising [[protozoa]] and [[helminths]] | ||
| − | A fifth controversial type are Pirons, which are infectious proteins that are believed to be the cause of bovine spongiform encephalopathy (BSE) and the human variant Creutzfeldt–Jakob disease (vCJD).<br /> | + | A fifth, controversial, type are Pirons, which are infectious proteins that are believed to be the cause of bovine spongiform encephalopathy (BSE) and the human variant Creutzfeldt–Jakob disease (vCJD).<br /> |
<br /> | <br /> | ||
All exist as either: | All exist as either: | ||
Revision as of 09:34, 11 May 2012
Introduction
One of the main causes of disease is infection by microorganisms, with four types so far identified:
A fifth, controversial, type are Pirons, which are infectious proteins that are believed to be the cause of bovine spongiform encephalopathy (BSE) and the human variant Creutzfeldt–Jakob disease (vCJD).
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 by microorganisms Learning Resources | |
|---|---|
 Test your knowledge using flashcard type questions |
Host Invasion Flashcards |
References
- Murphy, K., Travers, P. and Walport, M. (2008) Janeway's Immunobiology. 7th ed. New York: Garland Science Publishing.
 |
This article has been peer reviewed but is awaiting expert review. If you would like to help with this, please see more information about expert reviewing. |
|
Originally funded by the RVC Jim Bee Award 2007 |