| Literature DB >> 6270384 |
Abstract
The DNAs of a varicella-zoster virus vaccine and its parental virus were compared by CsCl buoyant density centrifugation and restriction enzyme cleavage analysis. The varicella-zoster virus vaccine DNA showed a heterogeneous buoyant profile and altered restriction enzyme cleavage patterns. These changed properties are probably the result of the accumulation of virus containing defective varicella-zoster virus DNA during extensive cell culture passage of the vaccine virus.Entities:
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Year: 1981 PMID: 6270384 PMCID: PMC256623
Source DB: PubMed Journal: J Virol ISSN: 0022-538X Impact factor: 5.103