{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T04:27:09Z","timestamp":1791260829858,"version":"4.1.0"},"reference-count":23,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2020,2,16]],"date-time":"2020-02-16T00:00:00Z","timestamp":1581811200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100009619","name":"Japan Agency for Medical Research and Development","doi-asserted-by":"publisher","award":["JP18fk0108030"],"award-info":[{"award-number":["JP18fk0108030"]}],"id":[{"id":"10.13039\/100009619","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003478","name":"Ministry of Health, Labour and Welfare","doi-asserted-by":"publisher","award":["10110400"],"award-info":[{"award-number":["10110400"]}],"id":[{"id":"10.13039\/501100003478","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["18K10036"],"award-info":[{"award-number":["18K10036"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Influenza Resp Viruses"],"published-print":{"date-parts":[[2020,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The novel cap\u2010dependent endonuclease inhibitor baloxavir marboxil was approved in February 2018 for the treatment of influenza virus infection in Japan. In vitro studies have revealed that an I38T substitution in the polymerase acidic subunit (PA) is associated with reduced susceptibility of influenza viruses to baloxavir.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>Development of a rapid and simple method for monitoring influenza A(H1N1)pdm09, A(H3N2), and B viruses possessing the I38T substitution in PA.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Three assays were developed based on RNase H2\u2010dependent PCR (rhPCR) and named A\/H1pdm PA_I38T rhPCR, A\/H3 PA_I38T rhPCR, and B PA_I38T rhPCR. The assays were evaluated using cDNAs synthesized from in vitro\u2010transcribed <jats:italic>PA<\/jats:italic> gene RNA controls, RNAs purified from viruses isolated in the 2017\/2018 and 2018\/2019 influenza seasons, and RNAs purified from clinical specimens collected in the 2018\/2019 influenza season.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The assays developed in this study accurately discriminated PA I38 and PA T38 with high sensitivity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Our assays should be considered a powerful tool for monitoring the emergence of baloxavir\u2010resistant influenza viruses.<\/jats:p><\/jats:sec>","DOI":"10.1111\/irv.12728","type":"journal-article","created":{"date-parts":[[2020,2,17]],"date-time":"2020-02-17T05:35:45Z","timestamp":1581917745000},"page":"436-443","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Rapid detection of an I38T amino acid substitution in influenza polymerase acidic subunit associated with reduced susceptibility to baloxavir marboxil"],"prefix":"10.1111","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6545-7448","authenticated-orcid":false,"given":"Mina","family":"Nakauchi","sequence":"first","affiliation":[{"name":"Influenza Virus Research Center National Institute of Infectious Diseases Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9064-4699","authenticated-orcid":false,"given":"Emi","family":"Takashita","sequence":"additional","affiliation":[{"name":"Influenza Virus Research Center National Institute of Infectious Diseases Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seiichiro","family":"Fujisaki","sequence":"additional","affiliation":[{"name":"Influenza Virus Research Center National Institute of Infectious Diseases Tokyo 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