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dc.contributor.authorKobporn Boonnaken_US
dc.contributor.authorYumiko Matsuokaen_US
dc.contributor.authorWeijia Wangen_US
dc.contributor.authorAmorsolo L. Suguitanen_US
dc.contributor.authorZhongying Chenen_US
dc.contributor.authorMyeisha Paskelen_US
dc.contributor.authorMariana Bazen_US
dc.contributor.authorIan Mooreen_US
dc.contributor.authorHong Jinen_US
dc.contributor.authorKanta Subbaraoen_US
dc.contributor.otherNational Institute of Allergy and Infectious Diseasesen_US
dc.contributor.otherMedImmune, Inc.en_US
dc.contributor.otherMahidol Universityen_US
dc.contributor.otherUniversité Lavalen_US
dc.contributor.otherWorld Health Organization, Australiaen_US
dc.date.accessioned2018-12-21T06:26:53Z
dc.date.accessioned2019-03-14T08:02:21Z-
dc.date.available2018-12-21T06:26:53Z
dc.date.available2019-03-14T08:02:21Z-
dc.date.issued2017-08-01en_US
dc.identifier.citationJournal of Virology. Vol.91, No.15 (2017)en_US
dc.identifier.issn10985514en_US
dc.identifier.issn0022538Xen_US
dc.identifier.other2-s2.0-85023209121en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85023209121&origin=inwarden_US
dc.identifier.urihttp://repository.li.mahidol.ac.th/dspace/handle/123456789/41397-
dc.description.abstract© 2017 American Society for Microbiology. We have developed pandemic live attenuated influenza vaccines (pLAIVs) against clade 1 H5N1 viruses on an Ann Arbor cold-adapted (ca) backbone that induced long-term immune memory. In 2015, many human infections caused by a new clade (clade 2.2.1.1) of goose/Guangdong (gs/GD) lineage H5N1 viruses were reported in Egypt, which prompted updating of the H5N1 pLAIV. We explored two strategies to generate suitable pLAIVs. The first approach was to modify the hemagglutinin gene of a highly pathogenic wild-type (wt) clade 2.2.1.1 virus, A/Egypt/N03434/2009 (Egy/09) (H5N1), with its unmodified neuraminidase (NA) gene; this virus was designated Egy/09 ca. The second approach was to select a low-pathogenicity avian influenza H5 virus that elicited antibodies that cross-reacted with a broad range of H5 viruses, including the Egypt H5N1 viruses, and contained a novel NA subtype for humans. We selected the lowpathogenicity A/duck/Hokkaido/69/2000 (H5N3) (dk/Hok/00) virus for this purpose. Both candidate vaccines were attenuated and immunogenic in ferrets, inducing antibodies that neutralized homologous and heterologous H5 viruses with different degrees of cross-reactivity; Egy/09 ca vaccine antisera were more specific for the gs/GD lineage viruses but did not neutralize recent North American isolates (clade 2.3.4.4), whereas antisera from dk/Hok/69 ca-vaccinated ferrets crossreacted with clade 2.3.4.4 and 2.2.1 viruses but not clade 1 or 2.1 viruses. When vaccinated ferrets were challenged with homologous and heterologous H5 viruses, challenge virus replication was reduced in the respiratory tract. Thus, the two H5 pLAIV candidates are suitable for clinical development to protect humans from infection with different clades of H5 viruses.en_US
dc.rightsMahidol Universityen_US
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85023209121&origin=inwarden_US
dc.subjectAgricultural and Biological Sciencesen_US
dc.subjectImmunology and Microbiologyen_US
dc.titleDevelopment of clade-specific and broadly reactive live attenuated influenza virus vaccines against rapidly evolving H5 subtype virusesen_US
dc.typeArticleen_US
dc.rights.holderSCOPUSen_US
dc.identifier.doi10.1128/JVI.00547-17en_US
Appears in Collections:Scopus 2016-2017

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