{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T06:05:57Z","timestamp":1760853957167,"version":"3.37.3"},"reference-count":40,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2017,12,28]],"date-time":"2017-12-28T00:00:00Z","timestamp":1514419200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000060","name":"National Institute of Allergy and Infectious Diseases","doi-asserted-by":"publisher","award":["K01AI110181","R00AI120851"],"award-info":[{"award-number":["K01AI110181","R00AI120851"]}],"id":[{"id":"10.13039\/100000060","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000026","name":"National Institute on Drug Abuse","doi-asserted-by":"publisher","award":["K24DA034621"],"award-info":[{"award-number":["K24DA034621"]}],"id":[{"id":"10.13039\/100000026","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Viral Hepatitis"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Treatment with the direct\u2010acting antiviral agent (<jats:styled-content style=\"fixed-case\">DAA<\/jats:styled-content>) sofosbuvir (<jats:styled-content style=\"fixed-case\">SOF<\/jats:styled-content>), an <jats:styled-content style=\"fixed-case\">NS<\/jats:styled-content>5B inhibitor, and velpatasvir (<jats:styled-content style=\"fixed-case\">VEL<\/jats:styled-content>), an <jats:styled-content style=\"fixed-case\">NS<\/jats:styled-content>5A inhibitor, demonstrates viral cure rates of \u226595% in hepatitis C virus (<jats:styled-content style=\"fixed-case\">HCV<\/jats:styled-content>) genotypes (<jats:styled-content style=\"fixed-case\">GT<\/jats:styled-content>) 1\u20106. Here, we investigated intrapatient <jats:styled-content style=\"fixed-case\">HCV<\/jats:styled-content> diversity in <jats:styled-content style=\"fixed-case\">NS<\/jats:styled-content>5A and <jats:styled-content style=\"fixed-case\">NS<\/jats:styled-content>5B using Shannon entropy to examine the relationship between viral diversity and treatment outcome. At baseline, <jats:styled-content style=\"fixed-case\">HCV<\/jats:styled-content> diversity was lowest in patients infected with <jats:styled-content style=\"fixed-case\">HCV GT<\/jats:styled-content>3 as compared to the other <jats:styled-content style=\"fixed-case\">GT<\/jats:styled-content>s, and viral diversity was greater in <jats:styled-content style=\"fixed-case\">NS<\/jats:styled-content>5A than <jats:styled-content style=\"fixed-case\">NS<\/jats:styled-content>5B (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a0.0001). Treatment outcome with <jats:styled-content style=\"fixed-case\">SOF<\/jats:styled-content>\/<jats:styled-content style=\"fixed-case\">VEL<\/jats:styled-content> or the comparator regimen of <jats:styled-content style=\"fixed-case\">SOF<\/jats:styled-content> with ribavirin (<jats:styled-content style=\"fixed-case\">RBV<\/jats:styled-content>) was not correlated with baseline diversity. However, among persons treated with <jats:styled-content style=\"fixed-case\">SOF<\/jats:styled-content>\/<jats:styled-content style=\"fixed-case\">VEL<\/jats:styled-content>, a decrease in diversity from baseline was observed at relapse in the majority virologic failures, consistent with a viral bottleneck event at relapse. In contrast, an increase in diversity was observed in 27% of <jats:styled-content style=\"fixed-case\">SOF<\/jats:styled-content>+<jats:styled-content style=\"fixed-case\">RBV<\/jats:styled-content> virologic failures. We investigated whether the increase in diversity was due to an increase in the transition rate, one mode of potential <jats:styled-content style=\"fixed-case\">RBV<\/jats:styled-content>\u2010mediated mutagenesis; however, we found no evidence of this mechanism. Overall, we did not observe that viral diversity at baseline influenced treatment outcome, but the diversity changes observed at relapse can improve our understanding of <jats:styled-content style=\"fixed-case\">RBV<\/jats:styled-content> viral suppression in vivo.<\/jats:p>","DOI":"10.1111\/jvh.12825","type":"journal-article","created":{"date-parts":[[2017,11,7]],"date-time":"2017-11-07T14:06:53Z","timestamp":1510063613000},"page":"344-353","source":"Crossref","is-referenced-by-count":2,"title":["Intrapatient viral diversity and treatment outcome in patients with genotype 3a hepatitis C virus infection on sofosbuvir\u2010containing regimens"],"prefix":"10.1111","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2494-0921","authenticated-orcid":false,"given":"N.","family":"Bhardwaj","sequence":"first","affiliation":[{"name":"Clinical Virology Gilead Sciences  Foster City CA USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Ragonnet\u2010Cronin","sequence":"additional","affiliation":[{"name":"University of California San Diego  San Diego CA USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Murrell","sequence":"additional","affiliation":[{"name":"University of California San Diego  San Diego CA USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Chodavarapu","sequence":"additional","affiliation":[{"name":"Clinical Virology Gilead Sciences  Foster City CA USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Martin","sequence":"additional","affiliation":[{"name":"Clinical Virology Gilead Sciences  Foster City CA USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Chang","sequence":"additional","affiliation":[{"name":"Clinical Virology Gilead Sciences  Foster City CA USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. 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