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Respiratory Viral Infections (view source)

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===[[Swine Influenza|Swine influenza]]===

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~~===~~Porcine ~~reproductive~~ and ~~respiratory syndrome===~~

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[[Porcine Reproductive and Respiratory Syndrome]]

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*The syndrome is caused by a small enveloped RNA virus which belongs to the new [[Arteriviridae|Arteriviridae]] group

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*Replicates in and destroys macrophages and endothelial cells causing vasculitis -> viraemia -> virus shedding (nasal secretions, faeces)

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*Clinical signs: respiratory and reproductive failure, weaned pigs, tachypnoea, eyelid oedema, conjunctivitis

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*Moderate to severe interstitial [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] in the cranial lobe

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*Superimposed bacterial infections are common

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*Infectious disease in swine that emerged 10 years ago

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*Today, PRRS is endemic in many if not all the pig-producing countries

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