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Abstract

In January 2019, two influenza A(H3N2) viruses carrying an I38T substitution in the polymerase acidic subunit (PA), which confers reduced susceptibility to baloxavir, were detected from epidemiologically unrelated hospitalised children in Japan. The viruses exhibited reduced susceptibility to baloxavir but were susceptible to neuraminidase inhibitors. Only one of the two children had been treated with baloxavir. An epidemiological analysis suggests possible transmission of the PA I38T mutant A(H3N2) virus among humans.

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/content/10.2807/1560-7917.ES.2019.24.12.1900170
2019-03-21
2025-07-16
/content/10.2807/1560-7917.ES.2019.24.12.1900170
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Influenza A(H3N2) virus exhibiting reduced susceptibility to baloxavir due to a polymerase acidic subunit I38T substitution detected from a hospitalised child without prior baloxavir treatment, Japan, January 2019
<p class="citation"> <span>Citation style for this article:</span> <span class="meta-value authors"> <a href="/search?value1=Emi+Takashita&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Takashita Emi</a>, <a href="/search?value1=Chiharu+Kawakami&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Kawakami Chiharu</a>, <a href="/search?value1=Rie+Ogawa&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Ogawa Rie</a>, <a href="/search?value1=Hiroko+Morita&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Morita Hiroko</a>, <a href="/search?value1=Seiichiro+Fujisaki&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Fujisaki Seiichiro</a>, <a href="/search?value1=Masayuki+Shirakura&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Shirakura Masayuki</a>, <a href="/search?value1=Hideka+Miura&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Miura Hideka</a>, <a href="/search?value1=Kazuya+Nakamura&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Nakamura Kazuya</a>, <a href="/search?value1=Noriko+Kishida&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Kishida Noriko</a>, <a href="/search?value1=Tomoko+Kuwahara&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Kuwahara Tomoko</a>, <a href="/search?value1=Akira+Ota&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Ota Akira</a>, <a href="/search?value1=Hayato+Togashi&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Togashi Hayato</a>, <a href="/search?value1=Ayako+Saito&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Saito Ayako</a>, <a href="/search?value1=Keiko+Mitamura&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Mitamura Keiko</a>, <a href="/search?value1=Takashi+Abe&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Abe Takashi</a>, <a href="/search?value1=Masataka+Ichikawa&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Ichikawa Masataka</a>, <a href="/search?value1=Masahiko+Yamazaki&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Yamazaki Masahiko</a>, <a href="/search?value1=Shinji+Watanabe&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Watanabe Shinji</a>, <a href="/search?value1=Takato+Odagiri&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Odagiri Takato</a></span>. Influenza A(H3N2) virus exhibiting reduced susceptibility to baloxavir due to a polymerase acidic subunit I38T substitution detected from a hospitalised child without prior baloxavir treatment, Japan, January 2019. <a href="/content/ecdc">Euro Surveill.</a> 2019;24(12):pii=1900170. <a href="https://doi.org/10.2807/1560-7917.ES.2019.24.12.1900170" title="doi link" target="_blank">https://doi.org/10.2807/1560-7917.ES.2019.24.12.1900170</a> <span class="ES_Article_citation"> <span class="generated">Received</span>: 06 Mar 2019;&nbsp;&nbsp; <span class="generated">Accepted</span>: 21 Mar 2019 </span> </p>
/content/10.2807/1560-7917.ES.2019.24.12.1900170
/content/10.2807/1560-7917.ES.2019.24.12.1900170
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