Author, Donkey, Bureaucrats, Administrators
53,803
edits
Changes
Created page with '===Bovine mastitis=== *''S. aureus'' is a common cause of mastitis in cattle worldwide *Most infections subclinical *Systemic infection can occur with peracute and gangrenous fo…'
===Bovine mastitis===
*''S. aureus'' is a common cause of mastitis in cattle worldwide
*Most infections subclinical
*Systemic infection can occur with peracute and gangrenous forms
*In gangrenous mastitis, the quarter may become necrotic and slough off; alpha toxin causes necrosis of smooth muscle in blood vessel walls, reducing blood flow to the affected quarter, and causes release of lysomal enzymes from leukocytes
===Tick pyaemia===
*Infection of lambs with ''S. aureus'' in hill-grazing areas of the UK
*Lambs carry ''S. aureus'' on their skin and nasal mucosa; infection via skin trauma including tick bites
*''Ixodes ricinus'' tick acts as a vector for ''[[Ehrlichia phagocytophila]]'', which causes immunosuppression in lambs, predisposing to staphylococcal infection
*Acute septicaemia and death or localised abscess formation in many organs
*Arthritis, posterior paresis and ill-thrift
*Microscopic identification of bacteria in pus and isolation of ''S. aureus''
*Prophylactic antibiotics e.g. tetracyclines initiated at 1 week of age may prevent infection
*Tick control important
===[[Muscles Inflammatory - Pathology#Botryomycosis|Botryomycosis]]===
*Chronic, suppurative granulomatous condition
*''S. aureus''
*Occurs following castration of horses due to infection of stump of spermatic cors
*Occurs in mammary tissues of sows
*Mass of fibrous tissue containing pus and sinus tracts
===Other infections caused by ''S. aureus''===
*[[Bacterial skin infections - Pathology#Impetigo|Impetigo]] in cattle and pigs
* [[Oedema - Pathology#Permeability type|Permeability types of pulmonary oedema]]
*Haemorrhagic disease by [[Haemostasis - Pathology#Secondary Thrombocytopenic Disease|secondary thrombocytopenic disease]]
*May infect [[Joints Inflammatory - Pathology#In Sheep|joints of sheep]]; [[Joints Inflammatory - Pathology#In Pigs|arthritis in pigs]]
*Dermatitis in sheep and goats
*Arthritis and septicaemia in turkeys
*Bumblefoot and omphalitis in chickens
[[Category:Staphylococcus species]][[Category:Cattle]][[Category:Sheep]][[Category:Pig]]
*''S. aureus'' is a common cause of mastitis in cattle worldwide
*Most infections subclinical
*Systemic infection can occur with peracute and gangrenous forms
*In gangrenous mastitis, the quarter may become necrotic and slough off; alpha toxin causes necrosis of smooth muscle in blood vessel walls, reducing blood flow to the affected quarter, and causes release of lysomal enzymes from leukocytes
===Tick pyaemia===
*Infection of lambs with ''S. aureus'' in hill-grazing areas of the UK
*Lambs carry ''S. aureus'' on their skin and nasal mucosa; infection via skin trauma including tick bites
*''Ixodes ricinus'' tick acts as a vector for ''[[Ehrlichia phagocytophila]]'', which causes immunosuppression in lambs, predisposing to staphylococcal infection
*Acute septicaemia and death or localised abscess formation in many organs
*Arthritis, posterior paresis and ill-thrift
*Microscopic identification of bacteria in pus and isolation of ''S. aureus''
*Prophylactic antibiotics e.g. tetracyclines initiated at 1 week of age may prevent infection
*Tick control important
===[[Muscles Inflammatory - Pathology#Botryomycosis|Botryomycosis]]===
*Chronic, suppurative granulomatous condition
*''S. aureus''
*Occurs following castration of horses due to infection of stump of spermatic cors
*Occurs in mammary tissues of sows
*Mass of fibrous tissue containing pus and sinus tracts
===Other infections caused by ''S. aureus''===
*[[Bacterial skin infections - Pathology#Impetigo|Impetigo]] in cattle and pigs
* [[Oedema - Pathology#Permeability type|Permeability types of pulmonary oedema]]
*Haemorrhagic disease by [[Haemostasis - Pathology#Secondary Thrombocytopenic Disease|secondary thrombocytopenic disease]]
*May infect [[Joints Inflammatory - Pathology#In Sheep|joints of sheep]]; [[Joints Inflammatory - Pathology#In Pigs|arthritis in pigs]]
*Dermatitis in sheep and goats
*Arthritis and septicaemia in turkeys
*Bumblefoot and omphalitis in chickens
[[Category:Staphylococcus species]][[Category:Cattle]][[Category:Sheep]][[Category:Pig]]