Difference between revisions of "Respiratory Viral Infections"

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===[[Swine Influenza|Swine influenza]]===
 
===[[Swine Influenza|Swine influenza]]===
  
===Porcine reproductive and respiratory syndrome===
+
[[Porcine Reproductive and Respiratory Syndrome]]
 +
 
  
*The syndrome is caused by a small enveloped RNA virus which belongs to the new [[Arteriviridae|Arteriviridae]] group
 
*Replicates in and destroys macrophages and endothelial cells causing vasculitis -> viraemia -> virus shedding (nasal secretions, faeces)
 
*Clinical signs: respiratory and reproductive failure, weaned pigs, tachypnoea, eyelid oedema, conjunctivitis
 
*Moderate to severe interstitial [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] in the cranial lobe
 
*Superimposed bacterial infections are common
 
*Infectious disease in swine that emerged 10 years ago
 
*Today, PRRS is endemic in many if not all the pig-producing countries
 
  
  

Revision as of 12:17, 30 June 2010


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()Map CARDIORESPIRATORY SYSTEM (Map)
RESPIRATORY SYSTEM INFLAMMATION



In general

  • Some viruses are thought to induce modifications of the pulmonary defences by:
    • Damaging the upper respiratory tract, thereby facilitating bacterial attachment and colonisation, with reduced mucociliary clearance
    • Decreasing surfactant levels by destroying Type 2 pneumonocytes
    • Impairing the phagocytic ability of alveolar macrophages


In Dogs

Canine Distemper Virus

Canine Parainfluenza - 2

Infectious canine tracheitis

Canine Adenovirus 1

Canine Adenovirus 2

Canine Herpesvirus 1

Canine Respiratory Coronavirus

In Cats

Feline viral rhinotracheitis

Feline Calicivirus

In Horses

Equine respiratory viruses Concept Map (Courtesy of B. Stanikova)

Equine rhinovirus

Equine influenza

Equine Rhinopneumonitis

Equine Viral Arteritis

Equine Adenovirus

African Horse Sickness

Hendra Virus

In Cattle

Infectious bovine rhinotracheitis (IBR)

Bovine Parainfluenza - 3

Bovine adenovirus

Bovine Respiratory Syncytial Virus

Bovine rhinovirus

In Sheep

Maedi - Visna

Parainfluenza -3


Sheep Pulmonary Adenomatosis

In Goats

Caprine Arthrirtis Encephalitis Virus


In Pigs

Porcine Cytomegalovirus


Swine influenza

Porcine Reproductive and Respiratory Syndrome



Postweaning multisystemic wasting syndrome (PMWS)


Porcine respiratory coronavirus