Difference between revisions of "Bacteria"
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'''Bacteria''' are single celled [[microorganisms]], without a nucleus (prokaryotes), that can cause lots of morbidity and mortality. They are not infrequently seen by pathologists. | '''Bacteria''' are single celled [[microorganisms]], without a nucleus (prokaryotes), that can cause lots of morbidity and mortality. They are not infrequently seen by pathologists. | ||
==Actinobacteria== | |||
*Previously known ''actinomycetes''. | |||
===General=== | |||
*IUD needs to be removed if found on a pap test. | |||
*Gram-positive cocci. | |||
*Common in the tonsils. | |||
===Microscopic=== | |||
Features: | |||
*Cocci. | |||
Images: | |||
*[http://pathology.class.kmu.edu.tw/ch05/Slide42.htm Actinobacteria (kmu.edu.tw)]. | |||
===Stains=== | |||
*AFB -ve. | |||
*Gram +ve. | |||
==Helicobacter pylori== | ==Helicobacter pylori== | ||
Revision as of 18:42, 14 September 2011
Bacteria are single celled microorganisms, without a nucleus (prokaryotes), that can cause lots of morbidity and mortality. They are not infrequently seen by pathologists.
Actinobacteria
- Previously known actinomycetes.
General
- IUD needs to be removed if found on a pap test.
- Gram-positive cocci.
- Common in the tonsils.
Microscopic
Features:
- Cocci.
Images:
Stains
- AFB -ve.
- Gram +ve.
Helicobacter pylori
- See Stomach.
Clostridium difficile
- Commonly C. difficile.
General
- Gram positive bacillus.
One virulent strain is:[1][2] BI/NAP1.
- Deletion of tcdC locus.
- Resistant to fluoroquinolones (gatifloxacin and moxifloxacin).
See also
References
- ↑ URL: http://www.medpagetoday.com/InfectiousDisease/PublicHealth/2254. Accessed on: 15 August 2011.
- ↑ McDonald, LC.; Killgore, GE.; Thompson, A.; Owens, RC.; Kazakova, SV.; Sambol, SP.; Johnson, S.; Gerding, DN. (Dec 2005). "An epidemic, toxin gene-variant strain of Clostridium difficile.". N Engl J Med 353 (23): 2433-41. doi:10.1056/NEJMoa051590. PMID 16322603.