Comparison of direct sequencing of the NS5B region with the Versant HCV genotype 2.0 assay for genotyping of viral isolates in Mexico

Luis Antonio Uribe-Noguez, José Antonio Mata-Marín, Alicia Ocaña-Mondragón, Ericka Nelly Pompa-Mera, Rosa María Ribas-Aparicio, Carla Ileana Arroyo-Anduiza, María Elena Gomez-Torres, Alberto Chaparro-Sánchez, Jesus Gaytán-Martínez, Stefan Mauss

Research output: Contribution to journalArticlepeer-review

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Abstract

© 2019 Japanese Society of Chemotherapy and The Japanese Association for Infectious Diseases Hepatitis C virus (HCV) infection affects an estimated 71 million people worldwide. HCV is classified into eight genotypes and >70 subtypes. Determination of HCV genotype is important for selection of type and duration of antiviral therapy, and genotype is also a predictor of treatment response. The most commonly used HCV genotyping method in clinical laboratories is a hybridization-based line probe assay (LiPA; Versant HCV Genotype 2.0). However, these methods have a lack of specificity in genotype identification and subtype assignment. Here, we compared the performance of Versant HCV Genotype 2.0 with the gold standard direct sequencing of the NS5B region, in 97 samples from Mexican patients. We found a genotypic concordance of 63.9% between these methods. While 68 samples (70%) were classified into HCV genotype 1 (GT1) by NS5B sequencing, it was not true for 17 samples (17.5%), which were not match HCV subtype by LiPA. Furthermore, nine of the 33 samples classified by NS5B sequencing as GT1a were not identified by LiPA. Use of direct sequencing could improve selection of the optimal therapy, avoid possible failures of therapy and avoid high costs resulting from incorrect genotyping tests in settings without broad access to pangenotypic regimens.
Original languageAmerican English
Pages (from-to)205-210
Number of pages6
JournalJournal of Infection and Chemotherapy
DOIs
StatePublished - 1 Feb 2020

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