Bovine Parainfluenza - 3 - Revision history

Bara at 19:03, 26 July 2012

2012-07-26T19:03:37Z

Bara at 14:14, 18 June 2011

2011-06-18T14:14:06Z

Bara at 15:03, 9 May 2011

2011-05-09T15:03:26Z

Bara: /* Introduction */

2011-03-21T16:10:52Z

Introduction

Bara at 16:08, 21 March 2011

2011-03-21T16:08:16Z

Kthompson at 18:14, 20 March 2011

2011-03-20T18:14:56Z

Bara at 18:30, 19 February 2011

2011-02-19T18:30:29Z

Bara at 16:12, 19 February 2011

2011-02-19T16:12:36Z

Bara: Text replace - "[[Nasal Cavity Inflammatory - Pathology" to "[[Rhinitis"

2011-02-15T17:07:40Z

Text replace - "[[Nasal Cavity Inflammatory - Pathology" to "[[Rhinitis"

Bara at 14:31, 15 February 2011

2011-02-15T14:31:19Z

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 Also known As: '''''Bovine PI-3'''''
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 {{review}}
 [[Category:Paramyxovirinae]] [[Category:Cattle_Viruses]] [[Category:Respiratory_Diseases_-_Cattle]] [[Category:Expert_Review - Farm Animal]] [[Category:Respiratory_Viral_Infections]]

← Older revision		Revision as of 14:14, 18 June 2011
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		+	Also known As: '''''Bovine PI-3'''''
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	== Introduction ==		== Introduction ==

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 == Introduction  ==
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 This affects any bovid of any age, but most commonly calves or cattle housed over winter.
 == Clinical Signs ==
 This virus may cause [[rhinitis]] of cattle when acting alone and with secondary infections may cause signs such as coughing and nasal discharge. If involved in calf pneumonia complex, then signs relating to that will also be seen such as dyspnoea, coughing, increased respiratory rate and general malaise.
 == Diagnosis  ==
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 Positive confirmation lies in a [[Immunofluorescence|Fluorescent Antibody Test (FAT)]] to the specific virus on frozen sections of tissue.
 == Treatment and Control  ==
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 Some vaccination does occur and is available in the UK. Immunity does not last and re-infection is common.
 == References ==
-Andrews, A.H, Blowey, R.W, Boyd, H and Eddy, R.G. (2004) Bovine Medicine (Second edition), Blackwell Publishing
+Andrews, A.H, Blowey, R.W, Boyd, H and Eddy, R.G. (2004) '''Bovine Medicine '''(Second edition), ''Blackwell Publishing''
-Blood, D.C. and Studdert, V. P. (1999) Saunders Comprehensive Veterinary Dictionary (2nd Edition), Elsevier Science
+Blood, D.C. and Studdert, V. P. (1999) '''Saunders Comprehensive Veterinary Dictionary''' (2nd Edition), ''Elsevier Science''
-Bridger, J and Russel, P (2007) Virology study guide, Royal Veterinary College
+Bridger, J and Russel, P (2007) '''Virology study guide, '''''Royal Veterinary College''
 [[Category:Paramyxovirinae]] [[Category:Cattle_Viruses]] [[Category:Respiratory_Diseases_-_Cattle]] [[Category:Expert_Review - Farm Animal]] [[Category:Respiratory_Viral_Infections]]

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 == Introduction  ==
-This virus is of the family [[:Category:Paramyxovirinae|paramyxoviridae]] and its virulence varies with isolates. Alone, this virus does not usually produce severe disease in cattle, but with other agents such [[Bovine Respiratory Syncitial Virus]], [[Infectious Bovine Rhinotracheitis]] and bacteria such as [[:Category:Mannheimia and Pasteurella species|''Mannheima'']] and [[:Category:Mycoplasma species|''Mycoplasmas'']], makes up the [[Enzootic Pneumonia - Calves|enzootic pneumonia complex]] which mostly affects calves.
+This virus is of the family [[:Category:Paramyxovirinae|paramyxoviridae]] and its virulence varies with isolates. Alone, this virus does not usually produce severe disease in cattle, but with other agents such [[Bovine Respiratory Syncytial Virus]], [[Infectious Bovine Rhinotracheitis]] and bacteria such as [[:Category:Pasteurella and Mannheimia species|''Mannheimia'']] and [[:Category:Mycoplasmas|''Mycoplasmas'']], makes up the [[Enzootic Pneumonia - Calves|enzootic pneumonia complex]] which mostly affects calves.
 Occurence of the disease is usually thought to be due to stress such as mixing of animals of different age groups, transport and winter housing. Poor hygiene also contributes to this.
 The virus causes cessation of [[Respiratory System General Introduction - Pathology#Mucociliary_escalator|ciliary clearance]] and epithelial necrosis, which predisposes to secondary bacterial infections and can leading to clinical signs. This occurs due to replication in airway epithelial cells causing an initial [[bronchitis]], which may lead to bronchiolitis and then extension into alveoli, causing [[Bronchointerstitial Pneumonia|bronchointerstitial pneumonia]]. Early stages may show intracytoplasmic inclusions and the resulting exudate is predominantly neutrophilic.
 == Signalment ==

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 == Introduction  ==
-This virus is of the family paramyxoviridae and its virulence varies with isolates. Alone, this virus does not usually produce severe disease in cattle, but with other agents such as Bovine Respiratory Syncitial Virus, Infectious Bovine Rhinotracheitis and bacteria such as Mannheima and Mycoplasmas, makes up the enzootic pneumonis complex which mostlyaffects calves.&nbsp;
+This virus is of the family [[:Category:Paramyxovirinae|paramyxoviridae]] and its virulence varies with isolates. Alone, this virus does not usually produce severe disease in cattle, but with other agents such [[Bovine Respiratory Syncitial Virus]], [[Infectious Bovine Rhinotracheitis]] and bacteria such as [[:Category:Mannheimia and Pasteurella species|''Mannheima'']] and [[:Category:Mycoplasma species|''Mycoplasmas'']], makes up the [[Enzootic Pneumonia - Calves|enzootic pneumonia complex]] which mostly affects calves.
-Occurence of the disease is usually thought to be due to stress such as mixing of animals of different age groups, transport and winter housing. Poor hygiene also contributes to this.<br>
+Occurence of the disease is usually thought to be due to stress such as mixing of animals of different age groups, transport and winter housing. Poor hygiene also contributes to this.
-The virus causes cessation of [[Respiratory System General Introduction - Pathology#Mucociliary_escalator|ciliary clearance]] and epithelial necrosis, which predisposes to secondary bacterial infections and can leading to clinical signs. This occurs due to replication in airway epithelial cells causing an initial bronchitis, which may lead to bronchiolitis and then extension into alveoli, causing bronchointerstitial pneumonia. Early stages may show intracytoplasmic inclusions and the resulting exudate is predominantly neutrophilic.
+The virus causes cessation of [[Respiratory System General Introduction - Pathology#Mucociliary_escalator|ciliary clearance]] and epithelial necrosis, which predisposes to secondary bacterial infections and can leading to clinical signs. This occurs due to replication in airway epithelial cells causing an initial [[bronchitis]], which may lead to bronchiolitis and then extension into alveoli, causing [[Bronchointerstitial Pneumonia|bronchointerstitial pneumonia]]. Early stages may show intracytoplasmic inclusions and the resulting exudate is predominantly neutrophilic.
-== Signalment<br> ==
+== Signalment ==
-This affects any bovid of any age, but most commonly calves or cattle housed over winter<br>
+This affects any bovid of any age, but most commonly calves or cattle housed over winter.
-== Clinical Signs<br> ==
+== Clinical Signs ==
-This virus may cause rhinitis of cattle when acting alone and with secondary infections may cause signs such as coughing and nasal discharge. If involved in calf pneumonia complex then signs relating to that will also be seen such as dyspnoea, coughing, increased respiratory rate and general malaise.<br>
+This virus may cause [[rhinitis]] of cattle when acting alone and with secondary infections may cause signs such as coughing and nasal discharge. If involved in calf pneumonia complex, then signs relating to that will also be seen such as dyspnoea, coughing, increased respiratory rate and general malaise.
 == Diagnosis  ==
-In many cases, history and clinical signs are diagnositc, especially when in complex with other disease. If the agent is acting alone, many cattle will not show clinical signs.<br>
+In many cases, history and clinical signs are diagnostic, especially when in complex with other disease. If the agent is acting alone, many cattle will not show any clinical signs.
-Diagnosis can be made from diseased lung tissue from dead animals or centrifuged cells from lung lavage. The virus is too fragile for cell culture isolation (often inactivated in transport). Antigen detection by '''immunocytochemistry''' for intracytoplasmic viral inclusions containing labelled viral protein can be performed. Serology can also be performed and a&nbsp; 4-fold rise in ELISA antibody in paired serum samples from several animals is indicative of the disease. A first, acute phase sample should be taken and another sample taken around 2 weeks after this (convalescent stage).<br>
+Diagnosis can be made from diseased lung tissue from dead animals or centrifuged cells from lung lavage. The virus is too fragile for cell culture isolation (often inactivated in transport). Antigen detection by '''immunocytochemistry''' for intracytoplasmic viral inclusions containing labelled viral protein can be performed. Serology can also be performed and a 4-fold rise in [[ELISA testing|ELISA]] antibody in paired serum samples from several animals is indicative of the disease. A first, acute phase sample should be taken and another sample taken around 2 weeks after this (convalescent stage).
-Positive confirmation lies in a Fluorescent Antibody Test (FAT) to the specific virus on frozen sections of tissue.<br>
+Positive confirmation lies in a [[Immunofluorescence|Fluorescent Antibody Test (FAT)]] to the specific virus on frozen sections of tissue.
 == Treatment and Control  ==
-Treatment can be given to help secondary bacterial infections.<br>
+Treatment can be given to help secondary bacterial infections.
-Control measures include improving managemental factors, such as using all-in, all-out systems, preventing mixing of groups of stock and increased ventillation in housing. Preventing overcrowding, humidity and stress are key factors. In calves it is important to ensure passive transfer occurs as a lack of colostrum will greatly incresae the risk of disease.<br>
+Control measures include improving managemental factors, such as using all-in all-out systems, preventing mixing of groups of stock and increased ventilation in housing. Preventing overcrowding, humidity and stress are key factors. In calves it is important to ensure passive transfer occurs as a [[Failure of Passive Transfer|lack of colostrum]] will greatly increase the risk of disease.
-Some vaccination does occur and is avaliable in the UK. Immunity does not last and re-infection is common.<br>
+Some vaccination does occur and is available in the UK. Immunity does not last and re-infection is common.
-== References<br> ==
+== References ==
-Andrews, A.H, Blowey, R.W, Boyd, H and Eddy, R.G. (2004) Bovine Medicine (Second edition), Blackwell Publishing<br>Blood, D.C. and Studdert, V. P. (1999) Saunders Comprehensive Veterinary Dictionary (2nd Edition) Elsevier Science<br>Bridger, J and Russel, P (2007) Virology study guide, Royal Veterinary College<br>Merck &amp; Co (2008) The Merck Veterinary Manual (Eighth Edition) Merial<br>Radostits, O.M, Arundel, J.H, and Gay, C.C. (2000) Veterinary Medicine: a textbook of the diseases of cattle, sheep, pigs, goats and horses Elsevier Health Sciences<br>
+Andrews, A.H, Blowey, R.W, Boyd, H and Eddy, R.G. (2004) Bovine Medicine (Second edition), Blackwell Publishing
-<br>
+Blood, D.C. and Studdert, V. P. (1999) Saunders Comprehensive Veterinary Dictionary (2nd Edition), Elsevier Science
-[[Category:Paramyxovirinae]] [[Category:Cattle_Viruses]] [[Category:Respiratory_Diseases_-_Cattle]] [[Category:To_Do_-_Review]] [[Category:Respiratory_Viral_Infections]]
+Bridger, J and Russel, P (2007) Virology study guide, Royal Veterinary College

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 *On its own causes [[Rhinitis#Infectious causes of rhinitis|rhinitis]]
 *Often part of multi-aetiology disease complex (e.g. [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]), often followed by [[:Category:Pasteurella and Mannheimia species|''Pasteurella sp.'']] obscuring viral origin
-*Replicates in airway epithelial cells and results in an initial [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|bronchitis -> bronchiolitis]] -> extension into [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|alveoli]], causing [[Lungs Inflammatory - Pathology#Bronchointerstitial pneumonia|bronchointerstitial pneumonia]]
+*Replicates in airway epithelial cells and results in an initial [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|bronchitis -> bronchiolitis]] -> extension into [[Pneumonia Overview#Infectious causes of pneumonia|alveoli]], causing [[Bronchointerstitial Pneumonia|bronchointerstitial pneumonia]]
 *Early stages may show [[Cellular Inclusions|intracytoplasmic inclusions]]
 *The resulting exudate is predominantly neutrophilic

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 *Causative agent: [[Paramyxoviridae#Bovine Parainfluenza - 3 (PI-3)|parainfluenza- 3 virus]] (PI3)
-*On its own causes [[Nasal Cavity Inflammatory - Pathology#Infectious causes of rhinitis|rhinitis]]
+*On its own causes [[Rhinitis#Infectious causes of rhinitis|rhinitis]]
 *Often part of multi-aetiology disease complex (e.g. [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]), often followed by [[:Category:Pasteurella and Mannheimia species|''Pasteurella sp.'']] obscuring viral origin
 *Replicates in airway epithelial cells and results in an initial [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|bronchitis -> bronchiolitis]] -> extension into [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|alveoli]], causing [[Lungs Inflammatory - Pathology#Bronchointerstitial pneumonia|bronchointerstitial pneumonia]]