Varicella zoster virus genotyping in chickenpox patient’s clinical isolates from Iran

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Aim: The varicella zoster virus (VZV) causes chickenpox and zoster infections. This study aimed to investigate the distribution of VZV genotypes among Iranian patients. Materials & methods: From 2010 to 2015, 244 patients were enrolled in this cross-sectional study, 45 of whom were positive for VZV DNA. Both direct sequencing and restriction fragment length polymorphism assay were performed for 19 positive specimens. SPSS v.20 was used for statistics. Results: The predominant VZV genotype was M1 (84.2%) followed by genotype E (10.5%) and genotype J (5.3%). Restriction fragment length polymorphism demonstrated that 17 strains were PstI+BglI+ (M1 and/or J genotypes) and 2 were PstI+BglI (E genotype). Conclusion: This research is a prelim study on VZV genotyping. Further investigations will help to confirm the VZV genotype prevalence reported here.

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