Difference between revisions of "Brucella melitensis"

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(Created page with '*Caprine and ovine brucellosis: **Caused by ''B. melitensis'' **Goats more susceptible **Abortion, orchitis in males, arthritis, hygromas **May not have protective immunity follo…')
 
 
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*Caprine and ovine brucellosis:
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{{OpenPagesTop}}
**Caused by ''B. melitensis''
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{{Taxobox
**Goats more susceptible
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|name              =''Brucella melitensis''
**Abortion, orchitis in males, arthritis, hygromas
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|phylum            =Proteobacteria
**May not have protective immunity following abortion
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|class              =Alpha Proteobacteria
**Rose Bengal agglutination test and complement fixation test
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|order              =Rhizobiales
**Test and slaughter where exotic
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|family            =Brucellaceae
*Ovine epididymitis
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|genus              =[[Brucella species|Brucella]]
**Caused by ''B. ovis''
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|species            =''B.melitensis''
**Epididymitis in rams and placentitis in ewes
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}}
**Reduced fertility in rams, sporadic abortion and peinatal mortality
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==Introduction==
**Venereal transmission
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[[File:Brucella mel.jpg|right|thumb|250px|<small><center> A photomicrograph of the bacterium ''Brucella melitensis''. (CDC 1979, Wikimedia commons)</center></small>]]
**Long latent period in rams following infection (present in semen 5 weeks after infection)
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''Brucella melitensis'' is one of the '''[[Bacteria |bacterial organism]]''' responsible for [[Ovine Brucellosis | '''Ovine Epididymitis''']], along with ''[[Brucella ovis]]''.
**Premating checks on rams - serological tests and scrotal palpation
 
**Testicular atrophy and swollen epididymis in chronically-infected rams
 
**Agar gel immunodiffusion test, complement fixation test and indirect ELISA
 
**Vaccination of young rams with ''B. melitensis'' vaccine or ''B. ovis'' bacterin
 
  
[[Category:Brucella_species]][[Category:Goat]][[Category:Sheep]]
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''Brucella melitensis'' however can also infect cattle, unlike ''[[Brucella ovis]]''.
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It is one of the [[Brucella species |Brucella genus]] of bacteria. There are three known biovars.
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It is a '''gram negative coccobacillus''' that sometimes forms small groups in tissues.
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==Lifecycle==
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''Brucella melitensis'' can be transmitted by the '''[[Stomoxys calcitrans | stable fly]]'''.
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==Pathogenesis==
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Severe '''inflammation''' of the epididymis particularly the tail cause formation of '''spermatocoeles''' and fibrinous '''adhesions'''.
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==Diseases==
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''B. melitensis'' causes [[Ovine Brucellosis]] (Epididymitis). It can also cause epididymitis in cattle.
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The disease is '''notifiable''' to the World Organisation for Animal Health [http://www.oie.int/ (OIE)].
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{{Learning
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|literature search = [http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=%22Brucella+melitensis%22&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&x=48&y=11&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all ''Brucella melitensis'' publications]
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|flashcards = [[Brucella melitensis Flashcards|''Brucella melitensis'' Flashcards]]
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}}
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==References==
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<references/>
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Merck Veterinary Manual, '''Brucellosis in sheep''', accessed online 06/06/2011 @ http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/110506.htm&word=brucella%2covis
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{{CABI source
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|datasheet = [http://www.cabi.org/ahpc/?compid=3&dsid=90733&loadmodule=datasheet&page=2144&site=160 '' Brucella melitensis'']
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|date =2 June 2011
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}}
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<br><br><br>
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{{review}}
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{{OpenPages}}
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[[Category:Brucella_species]]
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[[Category:Sheep Bacteria]][[Category:Cattle Bacteria]]
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[[Category:CABI Expert Review]][[Category:CABI AHPC Pages]]

Latest revision as of 12:33, 17 August 2012


Brucella melitensis
Phylum Proteobacteria
Class Alpha Proteobacteria
Order Rhizobiales
Family Brucellaceae
Genus Brucella
Species B.melitensis

Introduction

A photomicrograph of the bacterium Brucella melitensis. (CDC 1979, Wikimedia commons)

Brucella melitensis is one of the bacterial organism responsible for Ovine Epididymitis, along with Brucella ovis.

Brucella melitensis however can also infect cattle, unlike Brucella ovis.

It is one of the Brucella genus of bacteria. There are three known biovars.

It is a gram negative coccobacillus that sometimes forms small groups in tissues.

Lifecycle

Brucella melitensis can be transmitted by the stable fly.

Pathogenesis

Severe inflammation of the epididymis particularly the tail cause formation of spermatocoeles and fibrinous adhesions.

Diseases

B. melitensis causes Ovine Brucellosis (Epididymitis). It can also cause epididymitis in cattle.

The disease is notifiable to the World Organisation for Animal Health (OIE).



Brucella melitensis Learning Resources
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Flashcards
Test your knowledge using flashcard type questions
Brucella melitensis Flashcards
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Literature Search
Search for recent publications via CAB Abstract
(CABI log in required)
Brucella melitensis publications


References


Merck Veterinary Manual, Brucellosis in sheep, accessed online 06/06/2011 @ http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/110506.htm&word=brucella%2covis


CABIlogo

This article was originally sourced from The Animal Health & Production Compendium (AHPC) published online by CABI during the OVAL Project.

The datasheet was accessed on 2 June 2011.










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