Influenza A(H1N1)pdm09 Virus with Reduced Susceptibility to Baloxavir, Japan, 2024

Influenza A(H1N1)pdm09 virus carrying an I38N substitution was detected in an untreated teenager in Japan. The I38N mutant virus exhibited reduced susceptibility to baloxavir but remained susceptible to neuraminidase inhibitors and showed reduced growth capability. Monitoring antiviral drug suscept...

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Main Authors: Emi Takashita, Hiroko Morita, Shiho Nagata, Seiichiro Fujisaki, Hideka Miura, Tatsuya Ikeda, Kenichi Komabayashi, Mika Sasaki, Yohei Matoba, Tomoko Takahashi, Naomi Ogawa, Katsumi Mizuta, Sueshi Ito, Noriko Kishida, Kazuya Nakamura, Masayuki Shirakura, Shinji Watanabe, Hideki Hasegawa
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2025-05-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/31/5/24-1123_article
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author Emi Takashita
Hiroko Morita
Shiho Nagata
Seiichiro Fujisaki
Hideka Miura
Tatsuya Ikeda
Kenichi Komabayashi
Mika Sasaki
Yohei Matoba
Tomoko Takahashi
Naomi Ogawa
Katsumi Mizuta
Sueshi Ito
Noriko Kishida
Kazuya Nakamura
Masayuki Shirakura
Shinji Watanabe
Hideki Hasegawa
author_facet Emi Takashita
Hiroko Morita
Shiho Nagata
Seiichiro Fujisaki
Hideka Miura
Tatsuya Ikeda
Kenichi Komabayashi
Mika Sasaki
Yohei Matoba
Tomoko Takahashi
Naomi Ogawa
Katsumi Mizuta
Sueshi Ito
Noriko Kishida
Kazuya Nakamura
Masayuki Shirakura
Shinji Watanabe
Hideki Hasegawa
author_sort Emi Takashita
collection DOAJ
description Influenza A(H1N1)pdm09 virus carrying an I38N substitution was detected in an untreated teenager in Japan. The I38N mutant virus exhibited reduced susceptibility to baloxavir but remained susceptible to neuraminidase inhibitors and showed reduced growth capability. Monitoring antiviral drug susceptibility of influenza viruses is necessary to aid public health planning and clinical recommendations.
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institution OA Journals
issn 1080-6040
1080-6059
language English
publishDate 2025-05-01
publisher Centers for Disease Control and Prevention
record_format Article
series Emerging Infectious Diseases
spelling doaj-art-38bcdbd8580f4dfe97e44b738c3fd7c62025-08-20T02:20:12ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592025-05-013151019102310.3201/eid3105.241123Influenza A(H1N1)pdm09 Virus with Reduced Susceptibility to Baloxavir, Japan, 2024Emi TakashitaHiroko MoritaShiho NagataSeiichiro FujisakiHideka MiuraTatsuya IkedaKenichi KomabayashiMika SasakiYohei MatobaTomoko TakahashiNaomi OgawaKatsumi MizutaSueshi ItoNoriko KishidaKazuya NakamuraMasayuki ShirakuraShinji WatanabeHideki Hasegawa Influenza A(H1N1)pdm09 virus carrying an I38N substitution was detected in an untreated teenager in Japan. The I38N mutant virus exhibited reduced susceptibility to baloxavir but remained susceptible to neuraminidase inhibitors and showed reduced growth capability. Monitoring antiviral drug susceptibility of influenza viruses is necessary to aid public health planning and clinical recommendations. https://wwwnc.cdc.gov/eid/article/31/5/24-1123_articleinfluenza virusinfluenzavirusescap-dependent endonuclease inhibitorbaloxavir marboxilbaloxavir acid
spellingShingle Emi Takashita
Hiroko Morita
Shiho Nagata
Seiichiro Fujisaki
Hideka Miura
Tatsuya Ikeda
Kenichi Komabayashi
Mika Sasaki
Yohei Matoba
Tomoko Takahashi
Naomi Ogawa
Katsumi Mizuta
Sueshi Ito
Noriko Kishida
Kazuya Nakamura
Masayuki Shirakura
Shinji Watanabe
Hideki Hasegawa
Influenza A(H1N1)pdm09 Virus with Reduced Susceptibility to Baloxavir, Japan, 2024
Emerging Infectious Diseases
influenza virus
influenza
viruses
cap-dependent endonuclease inhibitor
baloxavir marboxil
baloxavir acid
title Influenza A(H1N1)pdm09 Virus with Reduced Susceptibility to Baloxavir, Japan, 2024
title_full Influenza A(H1N1)pdm09 Virus with Reduced Susceptibility to Baloxavir, Japan, 2024
title_fullStr Influenza A(H1N1)pdm09 Virus with Reduced Susceptibility to Baloxavir, Japan, 2024
title_full_unstemmed Influenza A(H1N1)pdm09 Virus with Reduced Susceptibility to Baloxavir, Japan, 2024
title_short Influenza A(H1N1)pdm09 Virus with Reduced Susceptibility to Baloxavir, Japan, 2024
title_sort influenza a h1n1 pdm09 virus with reduced susceptibility to baloxavir japan 2024
topic influenza virus
influenza
viruses
cap-dependent endonuclease inhibitor
baloxavir marboxil
baloxavir acid
url https://wwwnc.cdc.gov/eid/article/31/5/24-1123_article
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