Difference between revisions of "Mannheimia haemolytica"
Jump to navigation
Jump to search
(9 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
− | + | *Cause of epizootic pneumonia in cattle known as Shipping Fever, Transit Fever or [[Pneumonic Pasteurellosis|pneumonic pasteurellosis]] (90% caused by ''Mannheimia haemolytica'' Biotype A, serotype 1 but also ''[[Pasteurella multocida]]'' | |
− | + | *Usually secondary to viral infections such as [[Bovine Parainfluenza - 3|parainfluenza - 3]] or [[Infectious Bovine Rhinotracheitis|IBR]], bacterial infections such as ''Mycoplasma'' or environmental stress | |
+ | *May contribute to [[Enzootic Pneumonia - Calves|Enzootic pneumonia of calves]], [[Enzootic Pneumonia - Lambs|Enzootic pneumonia of lambs]] | ||
+ | *Enzootic pneumonia in sheep | ||
+ | * [[Peritonitis|Peritonitis in sheep]] | ||
+ | * [[Oedema - Pathology#Permeability type|Permeability types of pulmonary oedema]] | ||
+ | *Septicaemia in young lambs | ||
+ | *Causes gangrenous mastitis in sheep | ||
+ | *Beta-haemolytic on blood agar | ||
+ | *Grow weakly on MacConkey agar | ||
+ | *Odourless | ||
+ | *All are ''Mannheimia'' A biotypes (previously ''Pasterurella haemolytica'') | ||
+ | *Strains often produce a cytotoxin, known as leukotoxin, which kills leukocytes of ruminants | ||
+ | *Leukotoxin is a member of the RTX group toxins, and is probably largely responsible for the pathogenicity of the bacteria in septicaemia and pneumonia | ||
− | + | [[Category:Pasteurella_and_Mannheimia_species]][[Category:Cattle]][[Category:Sheep]] | |
− | + | [[Category:To_Do_-_Bacteria]] | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | [[Category: | ||
− | |||
− | [[Category: |
Revision as of 14:17, 20 July 2010
- Cause of epizootic pneumonia in cattle known as Shipping Fever, Transit Fever or pneumonic pasteurellosis (90% caused by Mannheimia haemolytica Biotype A, serotype 1 but also Pasteurella multocida
- Usually secondary to viral infections such as parainfluenza - 3 or IBR, bacterial infections such as Mycoplasma or environmental stress
- May contribute to Enzootic pneumonia of calves, Enzootic pneumonia of lambs
- Enzootic pneumonia in sheep
- Peritonitis in sheep
- Permeability types of pulmonary oedema
- Septicaemia in young lambs
- Causes gangrenous mastitis in sheep
- Beta-haemolytic on blood agar
- Grow weakly on MacConkey agar
- Odourless
- All are Mannheimia A biotypes (previously Pasterurella haemolytica)
- Strains often produce a cytotoxin, known as leukotoxin, which kills leukocytes of ruminants
- Leukotoxin is a member of the RTX group toxins, and is probably largely responsible for the pathogenicity of the bacteria in septicaemia and pneumonia