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− | {{review}}
| + | ==Introduction== |
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− | ==Description== | |
| A pneumonic disease which is caused by a range of infectious agents in combination with management and environmental stress causing damage to the respiratory tract predisposing to disease. | | A pneumonic disease which is caused by a range of infectious agents in combination with management and environmental stress causing damage to the respiratory tract predisposing to disease. |
− | It is principally of viral origin and the following viruses have been implemented in disease. [[Bovine Respiratory Syncytial Virus|Bovine respiratory syncytial virus (BRSV)]], [[Bovine Parainfluenza - 3|Parainfluenza- 3 (PI3)]], [[Bovine Viral Diarrhoea Virus|Bovine viral diarrhoea virus (BVDV)]], [[Bovine Adenovirus|Adenoviruses]], [[Bovine Enteric Coronavirus|Calf coronavirus]] and [[Infectious Bovine Rhinotracheitis|Bovine herpes viruses]]. | + | It is principally of viral origin and the following viruses have been implemented in disease. [[Bovine Respiratory Syncytial Virus|Bovine respiratory syncytial virus (BRSV)]], [[Bovine Parainfluenza - 3|Parainfluenza- 3 (PI3)]], [[Bovine Viral Diarrhoea Virus|Bovine viral diarrhoea virus (BVDV)]], [[Bovine Adenovirus|Adenoviruses]], [[Bovine Coronavirus|Calf coronavirus]] and [[Infectious Bovine Rhinotracheitis|Bovine herpes viruses]]. |
| [[Mycoplasmas]] have also been implemented and secondary bacterial infection is common. | | [[Mycoplasmas]] have also been implemented and secondary bacterial infection is common. |
| Bacterial agents include [[Mannheimia haemolytica|''Manheimia (Pasteurella) haemolytica'' serotype A1]], [[Pasteurella multocida|''Pasteurella multocida'']], [[Arcanobacter pyogenes|''Arcanobacter pyogenes'']] and ''[[Haemophilus somnus]]''. | | Bacterial agents include [[Mannheimia haemolytica|''Manheimia (Pasteurella) haemolytica'' serotype A1]], [[Pasteurella multocida|''Pasteurella multocida'']], [[Arcanobacter pyogenes|''Arcanobacter pyogenes'']] and ''[[Haemophilus somnus]]''. |
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| '''Micro pathology''': | | '''Micro pathology''': |
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− | Even to proper follicle formation is present, some of which may be large enough to compress the lumen. | + | Even though proper follicle formation is present, some of which may be large enough to compress the lumen. |
| A mixed cell exudate will be present in the airway lumen and substantial lymphoid tissue will be present around the airways. The alveolar walls may be thickened with [[Lymphocytes - Introduction|lymphocytes]]. | | A mixed cell exudate will be present in the airway lumen and substantial lymphoid tissue will be present around the airways. The alveolar walls may be thickened with [[Lymphocytes - Introduction|lymphocytes]]. |
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| Merck & Co (2008) '''The Merck Veterinary Manual''' (Eighth Edition) ''Merial '' | | Merck & Co (2008) '''The Merck Veterinary Manual''' (Eighth Edition) ''Merial '' |
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| + | {{review}} |
| [[Category:Respiratory Diseases - Cattle]] | | [[Category:Respiratory Diseases - Cattle]] |
| [[Category:Respiratory_Bacterial_Infections]] | | [[Category:Respiratory_Bacterial_Infections]] |