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Erschienen in: Archives of Virology 4/2019

10.02.2019 | Original Article

Analysis of the efficacy of an adjuvant-based inactivated pandemic H5N1 influenza virus vaccine

verfasst von: Ainur Nurpeisova, Markhabat Kassenov, Nurkuisa Rametov, Kaissar Tabynov, Gourapura J. Renukaradhya, Yevgeniy Volgin, Altynay Sagymbay, Amanzhol Makbuz, Abylay Sansyzbay, Berik Khairullin

Erschienen in: Archives of Virology | Ausgabe 4/2019

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Abstract

This paper describes a preclinical study analyzing the immunogenicity and protective efficacy of Kazfluvac®, an adjuvant-based inactivated pandemic influenza A/H5N1 virus vaccine. In this study, laboratory animals (ferrets and mice) were vaccinated by the intramuscular or intraperitoneal route at an interval of 14 days with two doses of the vaccine containing different concentrations of influenza virus hemagglutinin (HA) protein. HA protein without adjuvant (aluminum hydroxide and Merthiolate) was used as a control. As a negative control, we utilized PBS. We assessed the protective efficacy of the candidate vaccine by analyzing the response to challenge with the influenza virus strain A/chicken/Astana/6/05 (H5N1). Our experimental results revealed substantially reduced clinical disease and an increased antibody response, as determined by hemagglutination-inhibition (HAI) test and microneutralization assay (MNA). This study showed that the candidate vaccine is safe and elicits an antigen-dose-dependent serum antibody response. In summary, we determined the optimum antigen dose in a Kazfluvac® adjuvant formulation required for induction of heightened immunogenicity and protective efficacy to mitigate H5N1 disease in experimental animals, suggesting its readiness for clinical studies in humans.
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Metadaten
Titel
Analysis of the efficacy of an adjuvant-based inactivated pandemic H5N1 influenza virus vaccine
verfasst von
Ainur Nurpeisova
Markhabat Kassenov
Nurkuisa Rametov
Kaissar Tabynov
Gourapura J. Renukaradhya
Yevgeniy Volgin
Altynay Sagymbay
Amanzhol Makbuz
Abylay Sansyzbay
Berik Khairullin
Publikationsdatum
10.02.2019
Verlag
Springer Vienna
Erschienen in
Archives of Virology / Ausgabe 4/2019
Print ISSN: 0304-8608
Elektronische ISSN: 1432-8798
DOI
https://doi.org/10.1007/s00705-019-04147-7

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