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Retroviridae (view source)

130 bytes removed , 19:25, 20 October 2008

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*Lentiviruses show variation by mutation, making vaccination difficult

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~~===Retroviruses===~~

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*[[Lungs Hyperplastic and Neoplastic - Pathology#Sheep pulmonary adenomatosis (SPA/ Jaagsiekte)|SPA]] in sheep

===Lentiviruses===

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