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− | ***Found naturally in oral cavity of cattle
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− | ***Prefers anaerobic conditions but not strict anaerobe
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− | ***Entry of organism into tissues following trauma to the mucosa from rough feed or tooth eruption
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− | ***Causes [[Chronic Inflammation - Pathology#Granulomatous Inflammation|granulomatous inflammation]] of soft tissues and bone, causing [[Mandibular Osteomyelitis|lumpy jaw]]
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− | ***Usually invades mandible to cause [[Bones Inflammatory - Pathology#Osteomyelitis|osteomyelitis]] and may extend to surrounding [[Muscles Inflammatory - Pathology#Actinomycosis bovis|muscles]]
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− | ***The lesions begins as a painless swelling of the affected bone
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− | ***Swelling becomes more painful and enlarges over a number of weeks, gaining fistulous tracts which discharge pus
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− | ***Organisms found in yellow sulphur granules
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− | ***Club colony formation
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− | ***Colonies adhere to agar media and are non-haemolytic
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− | ***Surgical treatment possible when lesions are small
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− | ***Prolonged parenteral penicillin treatment may be beneficial early in the disease
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− | [[Category:Actinomyces]][[Category:Cattle]] | + | {{Taxobox |
| + | |name =''Actinomyces bovis'' |
| + | |phylum =Actinobacteria |
| + | |class =Actinobacteria |
| + | |order =Actinomycetales |
| + | |family =Actinomycetaceae |
| + | |genus =Actinomyces |
| + | |species =''A.bovis'' |
| + | }} |
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| + | [[File:actinomyces bovis.jpg|right|thumb|250px|<small><center> bovine actinomycosis, 3-years-old bull, 2-month evolution. (L. Mahin |
| + | 2008, Wikimedia commons)</center></small>]] |
| + | ==Overview== |
| + | ''Actinomyces bovis'' is a species of the ''[[:Category:Actinomyces|Actinomyces]]'' genus. |
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| + | It is found naturally in the oral cavity of cattle and prefers anaerobic conditions but is not a strict anaerobe. Entry of the organism into tissues is following trauma to the mucosa from rough feed or tooth eruption. It causes [[Granulomatous Inflammation|granulomatous inflammation]] of soft tissues and bone, causing [[Mandibular Osteomyelitis|lumpy jaw]]. |
| + | It usually invades the mandible to cause [[Osteomyelitis|osteomyelitis]] and may extend to surrounding muscles. |
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| + | ==Pathology== |
| + | The lesion begins as a painless swelling of the affected bone, the swelling becomes more painful and enlarges over a number of weeks, gaining fistulous tracts which discharge pus. The organisms are found in yellow sulphur granules and have club colony formation. Colonies adhere to agar media and are non-haemolytic. |
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| + | ==Treatment== |
| + | Surgical treatment is possible when the lesions are small and prolonged parenteral penicillin treatment may be beneficial early in the disease. |
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| + | {{Learning |
| + | |literature search = [http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=%22Actinomyces+bovis%22&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&x=40&y=16&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all ''Actinomyces bovis'' publications] |
| + | }} |
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| + | {{review}} |
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| + | {{OpenPages}} |
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| + | [[Category:Actinomyces]] |
| + | [[Category:Expert_Review]] |