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New page: {{unfinished}} {{toplink |linkpage =Viruses |linktext =VIRUSES |sublink1=Orthomyxoviridae |subtext1=INFLUENZA |pagetype =Bugs }} <br> ===Subtypes=== *Avian-like H1 and human-like H3 strai...
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{{toplink
|linkpage =Viruses
|linktext =VIRUSES
|sublink1=Orthomyxoviridae
|subtext1=INFLUENZA
|pagetype =Bugs
}}
<br>
===Subtypes===
*Avian-like H1 and human-like H3 strains vary in virulence
===Pathogenesis===
*Necrotising bronchiolitis with catarrhal pus
*Barking cough
*Interstitial pneumonia giving consolidation of the lungs and a 'meaty' appearance
*Often associated with bacteria, mycoplasma or immunosuppressive viruses (such as PRRS)
*The virus recycles on farms as litters outgrow maternal antibody at 12 weeks of age
*For more, see [[Respiratory Viral Infections - Pathology#Swine influenza|here]]
===Diagnosis===
*Clinical pneumonia is always suspect
*Serology: retrospective diagnosis by HI
===Control===
*Isolation of premises
*All-in/all-out systems
*Vaccination is not licensed in the UK
{{toplink
|linkpage =Viruses
|linktext =VIRUSES
|sublink1=Orthomyxoviridae
|subtext1=INFLUENZA
|pagetype =Bugs
}}
<br>
===Subtypes===
*Avian-like H1 and human-like H3 strains vary in virulence
===Pathogenesis===
*Necrotising bronchiolitis with catarrhal pus
*Barking cough
*Interstitial pneumonia giving consolidation of the lungs and a 'meaty' appearance
*Often associated with bacteria, mycoplasma or immunosuppressive viruses (such as PRRS)
*The virus recycles on farms as litters outgrow maternal antibody at 12 weeks of age
*For more, see [[Respiratory Viral Infections - Pathology#Swine influenza|here]]
===Diagnosis===
*Clinical pneumonia is always suspect
*Serology: retrospective diagnosis by HI
===Control===
*Isolation of premises
*All-in/all-out systems
*Vaccination is not licensed in the UK