Improved Identification and Differentiation of Varicella-Zoster Virus (VZV) Wild-Type Strains and an Attenuated Varicella Vaccine Strain Using a VZV Open Reading Frame 62-Based PCR

Abstract excerpt

A new method was developed to identify and differentiate varicella-zoster virus (VZV) wild-type strains from the attenuated varicella Oka vaccine strain. The PCR technique was used to amplify a VZV open reading frame (ORF) 62 region. A single specific amplicon of 268 bp was obtained from 71 VZV clinical isolates and several laboratory strains. Subsequent digestion of the VZV ORF 62 amplicons with SmaI enabled...

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