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{{CMG}} | {{CMG}} | ||
{{SK}} Christie Atkins | {{SK}} CAMP reaction; Christie Atkins Munch–Petersen reaction; Christie-Atkins-Munch–Petersen reaction | ||
==Overview== | ==Overview== | ||
The '''CAMP test''' is a test to identify Group B β-[[streptococci]]<ref name="pmid7014603"> | The '''CAMP test''' is a test to identify Group B β-[[streptococci]]<ref name="pmid7014603"> | ||
{{cite journal |author=Phillips EA, Tapsall JW, Smith DD |title=Rapid tube CAMP test for identification of Streptococcus agalactiae (Lancefield group B) |journal=J. Clin. Microbiol. |volume=12 |issue=2 |pages=135–7 |date=August 1980 |pmid=7014603 |pmc=273541 |doi= |url=http://jcm.asm.org/cgi/pmidlookup?view=long&pmid=7014603}}</ref><ref name="pmid328534">{{cite journal |author=Wilkinson HW |title=CAMP-disk test for presumptive identification of group B streptococci |journal=J. Clin. Microbiol. |volume=6 |issue=1 |pages=42–5 |date=July 1977 |pmid=328534 |pmc=274694 |doi= |url=http://jcm.asm.org/cgi/pmidlookup?view=long&pmid=328534}}</ref> based on their formation of a substance (CAMP factor<ref name="urlLaboratory Demonstrations">{{cite web |url=http://www1.indstate.edu/thcme/micro/demo1.html |title=Laboratory Demonstrations |work= |accessdate= | {{cite journal |author=Phillips EA, Tapsall JW, Smith DD |title=Rapid tube CAMP test for identification of Streptococcus agalactiae (Lancefield group B) |journal=J. Clin. Microbiol. |volume=12 |issue=2 |pages=135–7 |date=August 1980 |pmid=7014603 |pmc=273541 |doi= |url=http://jcm.asm.org/cgi/pmidlookup?view=long&pmid=7014603}}</ref><ref name="pmid328534">{{cite journal |author=Wilkinson HW |title=CAMP-disk test for presumptive identification of group B streptococci |journal=J. Clin. Microbiol. |volume=6 |issue=1 |pages=42–5 |date=July 1977 |pmid=328534 |pmc=274694 |doi= |url=http://jcm.asm.org/cgi/pmidlookup?view=long&pmid=328534}}</ref> based on their formation of a substance (CAMP factor<ref name="urlLaboratory Demonstrations">{{cite web |url=http://www1.indstate.edu/thcme/micro/demo1.html |title=Laboratory Demonstrations |work= |accessdate= }}</ref>) that enlarges the area of [[hemolysis (Microbiology)|hemolysis]] formed by β-[[hemolysin]] from [[Staphylococcus aureus]]. It is frequently used to identify ''[[Listeria]]'' species. The name has no relationship to [[cyclic adenosine monophosphate]] (cAMP). | ||
==Historical Perspective== | |||
It is an acronym for R. <u>'''C'''</u>hristie, N. E. <u>'''A'''</u>tkins, and E. <u>'''M'''</u>unch-<u>'''P'''</u>eterson,<ref name="pmid3528214">{{cite journal |author=Ratner HB, Weeks LS, Stratton CW |title=Evaluation of spot CAMP test for identification of group B streptococci |journal=J. Clin. Microbiol. |volume=24 |issue=2 |pages=296–7 |date=August 1986 |pmid=3528214 |pmc=268893 |doi= |url=http://jcm.asm.org/cgi/pmidlookup?view=long&pmid=3528214}}</ref><ref name="pmid10944837">{{cite journal|author=Nsagha DS, Bello CS, Kandakai-Olukemi YT |title=Hippurate hydrolysis and Christie, Atkins, Munch-Peterson tests as epidemiological diagnostic tools for Streptococcus agalactiae carriage in pregnancy |journal=East Afr Med J |volume=77 |issue=1|pages=34–6 |date=January 2000 |pmid=10944837 |doi= |url=}}</ref><ref name="pmid15870447">{{cite journal |author=Valanne S, McDowell A, Ramage G, ''et al.'' |title=CAMP factor homologues in Propionibacterium acnes: a new protein family differentially expressed by types I and II |journal=Microbiology (Reading, Engl.) |volume=151 |issue=Pt 5 |pages=1369–79 |date=May 2005 |pmid=15870447 |doi=10.1099/mic.0.27788-0 |url=http://mic.sgmjournals.org/cgi/pmidlookup?view=long&pmid=15870447}}</ref> for the three researchers who discovered the phenomenon.<ref>Christie, R., Atkins, NE and Munch-Petersen, E. (1944). A note on a lytic phenomenon shown by group B streptococci. Aust. J. Exp. Biol. Med. Sci. 22, 197-200</ref> | |||
It is often incorrectly reported as the product of ''four'' people (counting Munch-Petersen as two people).<ref name="urlStreptococci">{{cite web |url=http://pathmicro.med.sc.edu/fox/streptococci.htm |title=Streptococci |work= |accessdate=2008-12-12}}</ref> | |||
==CAMP factor== | ==CAMP factor== | ||
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It can be used to identify ''[[Streptococcus agalactiae]]''. Though not strongly beta-hemolytic on its own,<ref name="urlMicrobiology Primer: Hemolysis">{{cite web |url=http://gold.aecom.yu.edu/id/micro/hemolysis.htm |title=Microbiology Primer: Hemolysis |work= |accessdate=2008-12-12}}</ref> it presents with a wedge-shape in the presence of ''[[Staphylococcus aureus]]''.<ref name="urlStreptococcaceae Answers">{{cite web |url=http://faculty.matcmadison.edu/mljensen/111CourseDocs/111Review/Unit2Reviews/streptococcaceae_answers.htm |title=Streptococcaceae Answers |work= |accessdate=2008-12-12}}</ref> | It can be used to identify ''[[Streptococcus agalactiae]]''. Though not strongly beta-hemolytic on its own,<ref name="urlMicrobiology Primer: Hemolysis">{{cite web |url=http://gold.aecom.yu.edu/id/micro/hemolysis.htm |title=Microbiology Primer: Hemolysis |work= |accessdate=2008-12-12}}</ref> it presents with a wedge-shape in the presence of ''[[Staphylococcus aureus]]''.<ref name="urlStreptococcaceae Answers">{{cite web |url=http://faculty.matcmadison.edu/mljensen/111CourseDocs/111Review/Unit2Reviews/streptococcaceae_answers.htm |title=Streptococcaceae Answers |work= |accessdate=2008-12-12}}</ref> | ||
== | ==References== | ||
{{reflist|2}} | |||
==External Links== | |||
* [http://www.microbelibrary.org/component/resource/laboratory-test/3086-camp-test-protocols CAMP Test Protocols] | |||
[[Category:Needs content]] | |||
[[Category:Medical tests]] | [[Category:Medical tests]] | ||
[[Category:Microbiology techniques]] | [[Category:Microbiology techniques]] | ||
Latest revision as of 04:57, 25 February 2014
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Synonyms and keywords: CAMP reaction; Christie Atkins Munch–Petersen reaction; Christie-Atkins-Munch–Petersen reaction
Overview
The CAMP test is a test to identify Group B β-streptococci[1][2] based on their formation of a substance (CAMP factor[3]) that enlarges the area of hemolysis formed by β-hemolysin from Staphylococcus aureus. It is frequently used to identify Listeria species. The name has no relationship to cyclic adenosine monophosphate (cAMP).
Historical Perspective
It is an acronym for R. Christie, N. E. Atkins, and E. Munch-Peterson,[4][5][6] for the three researchers who discovered the phenomenon.[7]
It is often incorrectly reported as the product of four people (counting Munch-Petersen as two people).[8]
CAMP factor
Although usually used to identify group "B", there is some evidence that the CAMP factor gene is present in several groups of streptococci, including group "A".[9]
A similar factor has been identified in Bartonella henselae.[10]
Uses
It can be used to identify Streptococcus agalactiae. Though not strongly beta-hemolytic on its own,[11] it presents with a wedge-shape in the presence of Staphylococcus aureus.[12]
References
- ↑ Phillips EA, Tapsall JW, Smith DD (August 1980). "Rapid tube CAMP test for identification of Streptococcus agalactiae (Lancefield group B)". J. Clin. Microbiol. 12 (2): 135–7. PMC 273541. PMID 7014603.
- ↑ Wilkinson HW (July 1977). "CAMP-disk test for presumptive identification of group B streptococci". J. Clin. Microbiol. 6 (1): 42–5. PMC 274694. PMID 328534.
- ↑ "Laboratory Demonstrations".
- ↑ Ratner HB, Weeks LS, Stratton CW (August 1986). "Evaluation of spot CAMP test for identification of group B streptococci". J. Clin. Microbiol. 24 (2): 296–7. PMC 268893. PMID 3528214.
- ↑ Nsagha DS, Bello CS, Kandakai-Olukemi YT (January 2000). "Hippurate hydrolysis and Christie, Atkins, Munch-Peterson tests as epidemiological diagnostic tools for Streptococcus agalactiae carriage in pregnancy". East Afr Med J. 77 (1): 34–6. PMID 10944837.
- ↑ Valanne S, McDowell A, Ramage G; et al. (May 2005). "CAMP factor homologues in Propionibacterium acnes: a new protein family differentially expressed by types I and II". Microbiology (Reading, Engl.). 151 (Pt 5): 1369–79. doi:10.1099/mic.0.27788-0. PMID 15870447.
- ↑ Christie, R., Atkins, NE and Munch-Petersen, E. (1944). A note on a lytic phenomenon shown by group B streptococci. Aust. J. Exp. Biol. Med. Sci. 22, 197-200
- ↑ "Streptococci". Retrieved 2008-12-12.
- ↑ Gase K, Ferretti JJ, Primeaux C, McShan WM (September 1999). "Identification, cloning, and expression of the CAMP factor gene (cfa) of group A streptococci". Infect. Immun. 67 (9): 4725–31. PMC 96801. PMID 10456923.
- ↑ Litwin CM, Johnson JM (July 2005). "Identification, cloning, and expression of the CAMP-like factor autotransporter gene (cfa) of Bartonella henselae". Infect. Immun. 73 (7): 4205–13. doi:10.1128/IAI.73.7.4205-4213.2005. PMC 1168562. PMID 15972511.
- ↑ "Microbiology Primer: Hemolysis". Retrieved 2008-12-12.
- ↑ "Streptococcaceae Answers". Retrieved 2008-12-12.