| Species/Subspecies:
|
Streptococcus canis |
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| Etymology:
|
Genus name: twisted (like a chain) cocci (coccus means a grain or a berry and referrs to any spherical microorganism).
Species epithet: from a dog. |
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| Significance: | S. canis is often isolated from dogs and cats, but it can also cause bovine mastitis. The bacterium causes sporadic cases of mastitis in certain heards and larger outbreaks in other herds by transmission between cows at milking.
[Of minor importance]
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| Taxonomy:
|
| Phylum | Class | Order | Family | Genus |
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| Firmicutes | Bacilli | Lactobacillales | Streptococcaceae | Streptococcus |
|
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| Type Strain:
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STR-T1 = ATCC 43496 = CCUG 27661 |
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Macromorphology (smell):
  
 | Medium sized β-hemolytic colonies (1-2 mm in diameter) on blood agar. |
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| Micromorphology:
| Cocci, which appear in pairs or short chains. |
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Gram +/Gram -:
 | G+ |
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| Metabolism:
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Facultatively anaerobic |
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| Catalase/Oxidase: | -/ |
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| Other Enzymes:
| Esculinase +, β-galactosidas +, hippuricase -, hyaluronidase -, urease -. |
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| Biochemical Tests:
| Voges-Proskauer - |
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| Fermentation of carbohydrates:
|
| D-Glucose | Lactose | Maltose | L-rhamnose | Sucrose |
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| + | + | + | - | + | | L-Arabinos | Cellobios | D-mannitol | Salicin | Trehalose |
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| - | + | - | + | (-) | | Glycerol | Inulin | Raffinose | D-sorbitol | Starch |
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| w | - | - | - | + |
Other carbohydrates: amygdalin -, ribose + |
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Microbiological tests:
 | CAMP negative |
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| Spec. Char.:
| |
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| Hosts:
| Dog, cattle, cat and rat. |
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| Disease (Swedish): | Hund, katt och råtta: opportunistiska infektioner, t.ex. abscesser, lymfadenit, mastit, prostatit, pyoderma och pyometra.
ko: mastit. |
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| Disease (English): | Dog, cat and rat: opportunistic infections, e.g. abscesses, lymphadenitis, mastitis, prostatitis, pyoderma, pyometra and "puppy strangles".
cow: mastitis. |
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| Clinical Picture:
| |
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| 16S rRNA Seq.:
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| Acc-no | Strain | Number of NT | Operon |
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| DQ303184 | ATCC 43496T | 1 462 | |
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| Taxonomy/phylogeny:
|
|
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| Comment: | Belongs to Lancefield's group G streptcocci. |
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