176 bytes added ,  15:40, 17 February 2008
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*Grow on enriched media; non-acid fast
 
*Grow on enriched media; non-acid fast
 
*Colonise mucous membranes
 
*Colonise mucous membranes
 +
*Modified Ziehl-Neelson negative
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**Abscesses especially in liver
 
**Abscesses especially in liver
 
**Pyometra
 
**Pyometra
 +
**Endometritis
 
**Summer mastitis
 
**Summer mastitis
 
**Ovine foot disease
 
**Ovine foot disease
 +
**Arthritis
 
**Umbilical infections
 
**Umbilical infections
**Pneumonia
+
**Suppurative pneumonia
       
===''Actinomyces''===
 
===''Actinomyces''===
*Usually long and filamentous branching Gram positive rods
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*Usually long filamentous branching Gram positive rods
 
*Anaerobic or facultativlyy anaerobic and capnophilic
 
*Anaerobic or facultativlyy anaerobic and capnophilic
 
*Live in nasopharyngeal and oral mucosa
 
*Live in nasopharyngeal and oral mucosa
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**''Actinomyces viscosus''
 
**''Actinomyces viscosus''
 
***Commensal of oral cavity of dogs and humans
 
***Commensal of oral cavity of dogs and humans
***Causes localised abscesses of skin or granulomatous lesions in thorax which may spread to abdomen causing pyothorax
+
***Causes localised abscesses of skin or granulomatous lesions in thorax leading to pyothorax in dogs
 +
***Cutaneous pustules in horses
 +
***Abortion in cattle
 
***Rods contained in soft grey granules which release the organism when squashed
 
***Rods contained in soft grey granules which release the organism when squashed
 
***Two types of colonies: large and smooth colonies with V, Y and T configurations or small and rough colonies with short branching filaments
 
***Two types of colonies: large and smooth colonies with V, Y and T configurations or small and rough colonies with short branching filaments
 +
***Grow in 10% carbon dioxide
 +
    
===''Actinobaculum suis''===
 
===''Actinobaculum suis''===
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**Coryneform morphology
 
**Coryneform morphology
 
**Produces urease
 
**Produces urease
 +
**3mm diameter colonies with shiny raised centre and dull edge
 
**Produces lesions in urinary tract of sows
 
**Produces lesions in urinary tract of sows
**3mm diameter colonies with shiny raised centre and dull edge
+
**Cystitis and pyelonephritis in sows
 +
 
    
===''Nocardia''===
 
===''Nocardia''===
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*Chronic, progressive disease
 
*Chronic, progressive disease
 
*Lesions difficult to treat due to resistance of organisms to many antimicrobials (e.g. penicillins)
 
*Lesions difficult to treat due to resistance of organisms to many antimicrobials (e.g. penicillins)
 +
    
===''Dermatophilus congolensis''===
 
===''Dermatophilus congolensis''===
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