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| | ==In Cattle== | | ==In Cattle== |
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| − | ===Necrotic laryngitis=== | + | ===[[Necrotic Laryngitis]]=== |
| − | [[Image:Necrotising laryngitis.jpg|right|thumb|100px|<small><center>Necrotising laryngitis (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]
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| − | [[Image:Tracheitis in calf diphtheria.jpg|right|thumb|100px|<small><center>Tracheitis in calf diphtheria (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]
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| − | *Synonyms: '''laryngeal diphtheria, calf diphtheria'''
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| − | *Common disease in cattle, and can occur in swine
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| − | *Caused by infection with [[Fusobacterium|''Fusobacterium necrophorum'']]
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| − | *Lesions may also be found in other parts of the [[Nasopharynx Inflammatory - Pathology#Infectious causes of pharyngitis|oropharynx]]
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| − | *The bacterium usually gains entry through damaged mucosal surfaces e.g. after viral infections or injury following (poor!) use of dosing guns, coarse poor quality roughage
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| − | *Results in severe acute neutrophilic [[Larynx Inflammatory - Pathology#Infectious causes of laryngitis|laryngitis]]
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| − | *Extensive accumulation of fibrin and necrotic cellular debris on the ulcerated mucosal surface
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| − | *Lesions appear as dry plaques of fibrinonecrotic exudate and ulceration on the laryngeal mucosa
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| − | *Inhalation of exudate and bacterial organisms may cause [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|broncho]][[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]]
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| − | *Death may result from toxaemia or asphyxiation
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| − | *Also may occur in pigs
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| | ===''CAR bacillus''=== | | ===''CAR bacillus''=== |