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− | {{unfinished}}
| + | == Synonyms == |
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− | Also known as: '''''Infectious Canine Laryngotracheitis
| + | Infectious Canine Laryngotracheitis |
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− | ====Antigenicity====
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− | *Some antigenicity shared between CAV 1 and 2, which lends to vaccination
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− | ====Pathogenesis====
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− | *Causes '''necrosis''' of the '''respiratory tract''' with '''NO concurrent hepatitis'''
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− | *Animals present with:
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− | **Pyrexia
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− | **Mild depression
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− | **Nasal/ocular discharges
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− | **Corneal opacity (not always)
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− | **Dry, harsh, persistent cough
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− | ====Epidemiology==== | + | == Introduction == |
− | *Transfer is same as for [[Canine Adenovirus 1|CAV 1]]
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− | ====Diagnosis====
| + | Both Canine Adenovirus 1 and Canine Adenovirus 2 are now rare in the UK. There is some antigenicty shared between the two strains, which lends itself to vaccination. |
− | *Virus isolation from respiratory secretions
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− | ====Control====
| + | Infection spreads rapidly between unvaccinated dogs, especially if they are in groups e.g. in kennels. Transmission is by direct and indirect contact such as food bowls and bedding (fomites) and respiratory secretions. |
− | *Isolate coughing dogs and disinfect premises
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− | *Vaccination: CAV 1 vaccine will cross protect
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| + | The virus replicates in the oropharynx then causes '''necrosis''' of the '''respiratory tract''' with '''NO concurrent hepatitis'''. Lung lesions may be worsened by presence of Bordetella bronchiseptica and Pasturella multocida. It is thought that this virus may be a predisposing factor to the development of kennel cough. |
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− | [[Image:Adenovirus pneumonia.jpg|right|thumb|100px|<small><center>Adenovirus pneumonia (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]
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− | *[[Adenoviridae|Adenoviridae]] | + | == Signalment == |
− | *Usually mild [[Bronchointerstitial Pneumonia|bronchointerstitial pneumonia]], necrosis of bronchiolar and alveolar epithelium, oedema, type II pneumocyte hyperplasia | + | |
− | *May cause necrotising [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|bronchiolitis]] in immune-deficient dogs ([[Paramyxoviridae#Canine Distemper Virus (CDV)|distemper]]) | + | Dogs of any age, breed or sex will be equally affected by this virus if not vaccinated. |
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| + | == Clinical Signs == |
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| + | Animals present with pyrexia, mild depression, nasal/ocular discharges and a ry, harsh, persistant cough. Corneal opacity is sometimes seen. |
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| + | == Diagnosis == |
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| + | Virus can be isolated from respiratory secretions early in the disease. |
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| + | == Control == |
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| + | It is important to isolate coughing dogs and disinfect premises, in any cases of coughing as all respiratory disease is contagious. |
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| + | CAV-2 is largely controlled in the UK along with CAV-1 (infectious canine hepatitis virus) through the use of vaccination against CAV-1. As the viruses cross-protect, immunity is achieved from vaccinating against CAV-1. |
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| + | == References == |
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| + | Blood, D.C. and Studdert, V. P. (1999) Saunders Comprehensive Veterinary Dictionary (2nd Edition) Elsevier Science <br>Bridger, J and Russell, P (2007) Virology Study Guide, Royal Veterinary College<br>Merck & Co (2008) The Merck Veterinary Manual (Eighth Edition) Merial <br>Nelson, R.W. and Couto, C.G. (2009) Small Animal Internal Medicine (Fourth Edition) Mosby Elsevier. <br> |
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| + | [[Image:Adenovirus pneumonia.jpg|thumb|right|100px|<small><center>Adenovirus pneumonia (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]] |
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| + | *[[Adenoviridae|Adenoviridae]] |
| + | *Usually mild [[Bronchointerstitial Pneumonia|bronchointerstitial pneumonia]], necrosis of bronchiolar and alveolar epithelium, oedema, type II pneumocyte hyperplasia |
| + | *May cause necrotising [[Bronchitis#Infectious_causes_of_bronchitis_or_bronchiolitis|bronchiolitis]] in immune-deficient dogs ([[Paramyxoviridae#Canine_Distemper_Virus_.28CDV.29|distemper]]) |
| *Can be associated with [[Canine Infectious Tracheobronchitis|kennel cough]] described above | | *Can be associated with [[Canine Infectious Tracheobronchitis|kennel cough]] described above |
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− | [[Category:Adenoviridae]][[Category:Dog Viruses]][[Category:Respiratory Diseases - Dog]] | + | [[Category:Adenoviridae]] [[Category:Dog_Viruses]] [[Category:Respiratory_Diseases_-_Dog]] [[Category:To_Do_-_Review]] [[Category:Respiratory_Viral_Infections]] |
− | [[Category:To_Do_-_Clinical/Viruses]] | |
− | [[Category:Respiratory_Viral_Infections]] | |