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[[Category:Actinomyces]][[Category:Dog]][[Category:Horse]][[Category:Cattle]]
{{Taxobox
|name =''Actinomyces viscosus''
|phylum =Actinobacteria
|class =Actinobacteria
|order =Actinomycetales
|family =Actinomycetaceae
|genus =Actinomyces
|species =''A. viscosus''
}}
==Overview==
''Actinomyces viscosus'' is a species of the ''[[:Category:Actinomyces|Actinomyces]]'' genus. It is a commensal of the oral cavity of dogs and humans.
==Characteristics==
''A.viscosus'' rods are contained in soft grey granules which release the organism when squashed. There are two types of colonies: large and smooth colonies with V, Y and T configurations or small and rough colonies with short branching filaments. They grow in 10% carbon dioxide and usually respond to penicillin.
==Pathogenesis==
''A.viscosus'' is involved in canine actinomycosis and causes localised, subcutaneous pyogranulomatous lesions and fibrovascular proliferation of peritoneal ([[Peritonitis - Cats and Dogs|peritonitis]]) and pleural surfaces in dogs.
It leads to [[Pyothorax|pyothorax]], respiratory distress, cutaneous pustules in horses and abortion in cattle.
{{Learning
|literature search = [http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=%22Actinomyces+viscosus%22&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&x=23&y=5&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all ''Actinomyces viscosus'' publications]
}}
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[[Category:Actinomyces]]
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