attenuated

  • 131Serial passage — is a virus attenuation technique developed originally by Louis Pasteur in the 1880 s. It is similar to selective breeding, and can be used to create an attenuated strain of a virus to develop vaccines, or to increase the virulence of a viral… …

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  • 132Orthomyxoviridae — Virus classification Group: Group V (( )ssRNA) Order: Unassigned Family: Orthomyxoviridae …

    Wikipedia