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     * The genome is 13K nucleotides in length, has a 5'-methylguanosine cap and a 3' poly A tail of approximately 50 nucleotides. The genome alone is infectious.
 
     * The genome is 13K nucleotides in length, has a 5'-methylguanosine cap and a 3' poly A tail of approximately 50 nucleotides. The genome alone is infectious.
 
     * Individual viruses are antigenically distinct and host specific; they establish persistent infections
 
     * Individual viruses are antigenically distinct and host specific; they establish persistent infections
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Table of Contents
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 +
    * Viral Characteristics
 +
    * Classification
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    * Arterivirus
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          o Equine Arteritis
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          o Porcine Respiratory and Reproduction Syndrome
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          o Lactate Dehydrogenase-elevating Virus of Mice
    
==Transmission and Epidemiology==
 
==Transmission and Epidemiology==
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