Difference between revisions of "Erysipelothrix rhusiopathiae"
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*Causes [[Joints - inflammatory#In Sheep|arthritis in sheep]] and [[Joints - inflammatory#In Pigs|arthritis and discospondylitis in pigs]] | *Causes [[Joints - inflammatory#In Sheep|arthritis in sheep]] and [[Joints - inflammatory#In Pigs|arthritis and discospondylitis in pigs]] | ||
*May be involved in [[Bacterial skin infections#Systemic bacterial infections|cutaneous lesions]] | *May be involved in [[Bacterial skin infections#Systemic bacterial infections|cutaneous lesions]] | ||
| + | |||
| + | ===Overview=== | ||
| + | |||
| + | *Causes erysipelas in pigs and turkeys worldwide | ||
| + | *Occasionally infects sheep and other animals | ||
| + | *Causes erysipeloid, a localised cellulitis in humans | ||
| + | *Found in porcine tonsils - 50% of pigs are thought to be carriers | ||
| + | *Bacteria excreted in faeces and oronasal secretions | ||
| + | *Survive in soil for less than 35 days | ||
| + | *Present on fish | ||
| + | |||
| + | |||
| + | ===Characteristics=== | ||
| + | |||
| + | *Gram-positive, small rod (smooth form) or filamentous (rough form) | ||
| + | *Facultative anaerobe | ||
| + | *Non-motile | ||
| + | *Catalase negative, oxidase negative, coagulase positive | ||
| + | *Isolates from acute infections produce smooth colonies | ||
| + | *Isolates from chronic infections produce rough colonies | ||
| + | *Grow on nutrient agar; growth enhanced by addition of blood or serum | ||
| + | *Small colonies with incomplete haemolysis in 48 hours | ||
| + | *Hydrogen sulphide sormed along stab line in TSI agar | ||
| + | *Growth over wide rangs of temperatures and pH | ||
Revision as of 11:44, 26 May 2008
- Causes arthritis in sheep and arthritis and discospondylitis in pigs
- May be involved in cutaneous lesions
Overview
- Causes erysipelas in pigs and turkeys worldwide
- Occasionally infects sheep and other animals
- Causes erysipeloid, a localised cellulitis in humans
- Found in porcine tonsils - 50% of pigs are thought to be carriers
- Bacteria excreted in faeces and oronasal secretions
- Survive in soil for less than 35 days
- Present on fish
Characteristics
- Gram-positive, small rod (smooth form) or filamentous (rough form)
- Facultative anaerobe
- Non-motile
- Catalase negative, oxidase negative, coagulase positive
- Isolates from acute infections produce smooth colonies
- Isolates from chronic infections produce rough colonies
- Grow on nutrient agar; growth enhanced by addition of blood or serum
- Small colonies with incomplete haemolysis in 48 hours
- Hydrogen sulphide sormed along stab line in TSI agar
- Growth over wide rangs of temperatures and pH