Brucella: Difference between revisions

Brucella
	;
Scientific classification
Kingdom:	Bacteria;
Phylum:	Proteobacteria;
Class:	Alpha Proteobacteria;
Order:	Rhizobiales;
Family:	Brucellaceae;
Genus:	Brucella;
Species
	B. abortus; B. canis; B. melitensis; B. neotomae; B. ovis; B. suis;

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VisualWikitext

Latest revision as of 20:44, 29 July 2020

This page is about microbiologic aspects of the organism(s). For clinical aspects of the disease, see brucellosis.

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Danitza Lukac, Vishal Devarkonda, M.B.B.S [2]

Overview

Human brucellosis is caused by four Brucellae species: B. abortus, B. canis, B. melitensis, and B. suis.^[1]

Causes

Brucella is a genus of gram-negative bacteria.^[2]They are small (0.5 to 0.7 by 0.6 to 1.5 µm), non-motile and encapsulated coccobacilli.

Brucella species

Brucella species have been found primarily in mammals. ^[3] Brucellla species, with their host and degree of virulence is described below:^[4]


Species	Host	Human Virulence
B. melitensis	Goats, sheep, cattle, buffaloes, dogs and camels	++++
B. abortus	Cattle, buffaloes, bison, dogs, elk, and horses	++/+++
B. canis	Dogs	+
B. suis	Pigs and sheep	+
B. ovis	Sheep	-

Tests to differentiate brucella species

Following tests may be used to differentiate between the different species of brucella.^[5]


Test	B. melitensis	B. abortus	B. suis	B. ovis	B. canis
Need to CO2	-	+	-	+	-
Production of H2S	-	+	+	-	-
Growth on basic fushin 0.002%	+	+	-	+	-
Growth on thionin 0.004%	-	-	+	+	+
Growth on thionin 0.002%	+	-	+	+	+
Destroy with Tb phage	-	+	-	-	-

References

↑ "WHO" (PDF).
↑ Ryan KJ, Ray CG (editors) (2004). Sherris Medical Microbiology (4th ed. ed.). McGraw Hill. ISBN 0-8385-8529-9.
↑ Pappas G, Akritidis N, Bosilkovski M, Tsianos E (2005). "Brucellosis". N Engl J Med. 352 (22): 2325–36. doi:10.1056/NEJMra050570. PMID 15930423.
↑ "WHO" (PDF).
↑ "WHO" (PDF).

[1] "WHO" (PDF).

[Sherris-2] Ryan KJ, Ray CG (editors) (2004). Sherris Medical Microbiology (4th ed. ed.). McGraw Hill. ISBN 0-8385-8529-9.

[pmid15930423-3] Pappas G, Akritidis N, Bosilkovski M, Tsianos E (2005). "Brucellosis". N Engl J Med. 352 (22): 2325–36. doi:10.1056/NEJMra050570. PMID 15930423.

[4] "WHO" (PDF).

[5] "WHO" (PDF).

[1]

[2]

[3]

[4]

[5]

@@ Line 27: / Line 27: @@
 ==Causes==
-*'''''[[Brucella]]''''' is a genus of Gram-negative bacteria.<ref name="Sherris">{{cite book | author = Ryan KJ, Ray CG (editors) | title = Sherris Medical Microbiology | edition = 4th ed. | publisher = McGraw Hill | year = 2004 | isbn = 0-8385-8529-9 }}</ref> They are small (0.5 to 0.7 by 0.6 to 1.5 µm), non-motile, encapsulated coccobacilli.
+*'''''[[Brucella]]''''' is a genus of [[gram-negative bacteria]].<ref name="Sherris">{{cite book | author = Ryan KJ, Ray CG (editors) | title = Sherris Medical Microbiology | edition = 4th ed. | publisher = McGraw Hill | year = 2004 | isbn = 0-8385-8529-9 }}</ref>They are small (0.5 to 0.7 by 0.6 to 1.5 µm), non-motile and encapsulated [[coccobacilli]].
 === Brucella species ===
-''[[Brucella]]'' species have been found primarily in mammals. <ref name="aba">Brucella. Wikipedia. https://en.wikipedia.org/wiki/Brucella#Characteristics. Accessed on February 2, 2016</ref><ref name="pmid15930423">{{cite journal| author=Pappas G, Akritidis N, Bosilkovski M, Tsianos E| title=Brucellosis. | journal=N Engl J Med | year= 2005 | volume= 352 | issue= 22 | pages= 2325-36 | pmid=15930423 | doi=10.1056/NEJMra050570 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15930423  }} </ref> Brucellla species, with their host and degree of virulence is described below:<ref>{{Cite web|url=http://www.who.int/csr/resources/publications/Brucellosis.pdf|title=WHO|last=|first=|date=|website=|publisher=|access-date=}}</ref>
+''[[Brucella]]'' species have been found primarily in mammals. <ref name="pmid15930423">{{cite journal| author=Pappas G, Akritidis N, Bosilkovski M, Tsianos E| title=Brucellosis. | journal=N Engl J Med | year= 2005 | volume= 352 | issue= 22 | pages= 2325-36 | pmid=15930423 | doi=10.1056/NEJMra050570 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15930423  }} </ref> Brucellla species, with their host and degree of virulence is described below:<ref>{{Cite web|url=http://www.who.int/csr/resources/publications/Brucellosis.pdf|title=WHO|last=|first=|date=|website=|publisher=|access-date=}}</ref>
 {| style="border: 0px; font-size: 90%; margin: 3px;" align="center"
 |+
@@ Line 60: / Line 60: @@
 === Tests to differentiate brucella species ===
-[[Oxidase test|Oxidase]] and [[Catalase test|catalase tests]] are positive for most members of the genus [[Brucella|''Brucella'']].<ref name="aba" /> Following tests may be used to differentiate between the different species of brucella.<ref>{{Cite web|url=http://www.who.int/csr/resources/publications/Brucellosis.pdf|title=WHO|last=|first=|date=|website=|publisher=|access-date=}}</ref>
+Following tests may be used to differentiate between the different species of brucella.<ref>{{Cite web|url=http://www.who.int/csr/resources/publications/Brucellosis.pdf|title=WHO|last=|first=|date=|website=|publisher=|access-date=}}</ref>
 {| style="border: 0px; font-size: 90%; margin: 3px;" align="center"
 |+
@@ Line 117: / Line 117: @@
 {{reflist|2}}
-[[Category:Rhizobiales]]
+[[Category:Disease]]
-[[Category:Gram negative bacteria]]
+[[Category:Up-To-Date]]
-[[Category:Infectious Disease Project]]
+[[Category:Pulmonology]]
+[[Category:Hepatology]]
+[[Category:Rheumatology]]
+[[Category:Nephrology]]