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1,084 bytes removed ,  11:22, 23 May 2010
Redirected page to Category:Picornaviridae
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#REDIRECT[[:Category:Picornaviridae]]
 
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{{toplink
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|linkpage =Viruses
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|linktext =VIRUSES
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|pagetype=Bugs
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}}
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<br>
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=Introduction=
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=Morphology=
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*Very small RNA viruses
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*Much antigenic variation
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*Subtypes evolve and do not cross-protect
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*4 capsid proteins (VP1-VP4), with VP1 providing neutralizing target
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=Virulence and Pathogenesis=
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*Cytopathic effect of all viruses is an overnight '''cell rounding''' and '''pyknosis'''
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=Epidemiology=
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*Very resistant
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*Can survive several months on '''fomites'''
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*Infect via upper respiratory tract or buccal cavity and spread to target organs after viremia
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=Types and Subtypes=
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3 Main Genera:
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===Enteroviruses===
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*[[Swine Vesicular Disease]]
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*[[Porcine Enterovirus]]
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===Apthoviruses===
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*[[Foot and Mouth Disease (FMDV)]]
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===Rhinoviruses===
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*Subclinical cold viruses
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*Equine rhinovirus (picornavirus type 1 and 2) in [[Nasal Cavity Inflammatory - Pathology#Infectious causes of rhinitis|rhinitis]], see [[Respiratory Viral Infections - Pathology#Equine rhinovirus|respiratory infections]]
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*Bovine rhinovirus may cause mild [[Respiratory Viral Infections - Pathology#Bovine rhinovirus|respiratory infections]]
 
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