Virus is replicated in the nucleus of the target cell
Virus enters the target cell
Viral neuramidinase cleaves
the new viruses from the cell
and they disseminate to new targets
which in turn replicate them
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Due to the rapid cellular penetration of the virus and to its very efficient replication (reproduction), it is disseminated in around 48 hours, thanks to its neuramidinase which cleaves it from target cells practically as soon as it is replicated .
