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2. Predominance of influenza virus A(H3N2) 3C.2a1b and A(H1N1)pdm09 6B.1A5A genetic subclades in the WHO European Region, 2018–2019

Author

Melidou, Angeliki, Hungnes, Olav, Pereyaslov, Dmitriy, Adlhoch, Cornelia, Segaloff, Hannah, Robesyn, Emmanuel, Penttinen, Pasi, Olsen, Sonja J., Redlberger-Fritz, Monika, Popow-Kraupp, Therese, Hasibra, Iris, Simaku, Artan, Thomas, Isabelle, Barbezange, Cyril, Dedeić-Ljubović, Amela, Rodić-Vukmir, Nina, Korsun, Neli, Angenova, Svetla, Draženović, Vladimir, Koliou, Maria, Pieridou, Despo, Havlickova, Martina, Nagy, Alexander, Trebbien, Ramona, Galiano, Monica, Thompson, Catherine, Ikonen, Niina, Haveri, Anu, Behillil, Sylvie, Enouf, Vincent, Valette, Martine, Lina, Bruno, Gavashelidze, Mari, Machablishvili, Ann, Gioula, Georgia, Exindari, Maria, Kossyvakis, Athanasios, Mentis, Andreas, Dürrwald, Ralf, Zsuzsanna, Molnar, Monika, Rozsa, Löve, Arthur, Erna, Gudrun, Dunford, Linda, Fitzpatrick, Sarah, Castrucci, Maria Rita, Puzelli, Simona, Sagymbay, Altynay, Nussupbayeva, Gaukhar, Zamjatina, Natalija, Pakarna, Gatis, Griskevičius, Algirdas, Skrickiene, Asta, Fournier, Guillaume, Mossong, Joel, Melillo, Jackie, Zahra, Graziella, Meijer, Adam, Fouchier, Ron, McCaughey, Conall, O'Doherty, Mark, Bragstad, Karoline, Guiomar, Raquel, Pechirra, Pedro, Apostol, Mariana, Alina, Druc, Lazar, Mihaela, Maria, Cherciu Carmen, Komissarov, Andrey, Burtseva, Elena, Gunson, Rory N., Shepherd, Samantha, Tichá, Elena, Staronova, Edita, Prosenc, Katarina, Berginc, Nataša, Pozo, Francisco, Casas, Inmaculada, Brytting, Mia, Wiman, Åsa, Gonçalves, Ana Rita, Demchyshyna, Iryna, Mironenko, Alla, Moore, Catherine, Cottrell, Simon, and European Region influenza surveillance network

Subjects
Influenzavirus A, Infecções Respiratórias, viruses, 030231 tropical medicine, Hemagglutinin Glycoproteins, Influenza Virus, Biology, World Health Organization, Virus, Antigenic, 03 medical and health sciences, Influenza A Virus, H1N1 Subtype, 0302 clinical medicine, Vaccine strain, Genetic, Antigen, Influenza, Human, Humans, 030212 general & internal medicine, Clade, Phylogeny, chemistry.chemical_classification, Surveillance, General Veterinary, General Immunology and Microbiology, Influenza A Virus, H3N2 Subtype, Public Health, Environmental and Occupational Health, Subclade, European region, Virology, A h1n1 pdm09, Influenza, Amino acid, Europe, Infectious Diseases, chemistry, Influenza Vaccines, RNA, Viral, Molecular Medicine, Vaccine
Abstract

Network authors: Portugal - Raquel Guiomar, Pedro Pechirra, National Influenza Reference Laboratory, Infectious Diseases Department, National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal Background: The 2018/2019 influenza season in the WHO European Region was dominated by influenza A (H1N1)pdm09 and (H3N2) viruses, with very few influenza B viruses detected. Methods: Countries in the European Region reported virus characterization data to The European Surveillance System for weeks 40/2018 to 20/2019. These virus antigenic and genetic characterization and haemagglutinin (HA) sequence data were analysed to describe and assess circulating viruses relative to the 2018/2019 vaccine virus components for the northern hemisphere. Results: Thirty countries reported 4776 viruses characterized genetically and 3311 viruses antigenically. All genetically characterized A(H1N1)pdm09 viruses fell in subclade 6B.1A, of which 90% carried the amino acid substitution S183P in the HA gene. Antigenic data indicated that circulating A(H1N1)pdm09 viruses were similar to the 2018/2019 vaccine virus. Genetic data showed that A(H3N2) viruses mostly fell in clade 3C.2a (75%) and 90% of which were subclade 3C.2a1b. A lower proportion fell in clade 3C.3a (23%) and were antigenically distinct from the vaccine virus. All B/Victoria viruses belonged to clade 1A; 30% carried a double amino acid deletion in HA and were genetically and antigenically similar to the vaccine virus component, while 55% carried a triple amino acid deletion or no deletion in HA; these were antigenically distinct from each other and from the vaccine component. All B/Yamagata viruses belonged to clade 3 and were antigenically similar to the virus component in the quadrivalent vaccine for 2018/2019. Conclusions: A simultaneous circulation of genetically and antigenically diverse A(H3N2) and B/Victoria viruses was observed and represented a challenge to vaccine strain selection. Highlights: Co-circulation of different clades/subclades of influenza A viruses in 2018/2019 in the Region; Most circulating A(H1N1)pdm09 viruses (6B.1A) carried S183P in hemagglutinin; Genetically heterogeneous A(H3N2) viruses, with co-circulation of clades 3C.2a and 3C.3a; Antigenically distinct A(H3N2) clade 3C.3a viruses were increasingly detected until 02/2019 and then decreased; Co-circulation of genetically and antigenically diverse A(H3N2) strains challenges vaccine strain selection. info:eu-repo/semantics/publishedVersion

Published
2020

4. Erratum to “Predominance of influenza A(H3N2) virus genetic subclade 3C.2a1 during an early 2016/17 influenza season in Europe – Contribution of surveillance data from World Health Organization (WHO) European region to the WHO vaccine composition consultation for northern hemisphere 2017/18” [Vaccine 35 (2017) 4828–4835]

Author

Melidou, Angeliki, primary, Broberg, Eeva, additional, Adlhoch, Cornelia, additional, Snacken, René, additional, Penttinen, Pasi, additional, Pereyaslov, Dmitriy, additional, Brown, Caroline, additional, Redlberger-Fritz, Monika, additional, Popow-Kraupp, Therese, additional, Thomas, Isabelle, additional, Barbezange, Cyril, additional, Bossuyt, Nathalie, additional, Jirincova, Helena, additional, Nagy, Alexander, additional, Trebbien, Ramona, additional, Fischer, Thea K., additional, Ikonen, Niina, additional, Haveri, Anu, additional, Lyytikäinen, Outi, additional, Murtopuro, Satu, additional, Behillil, Sylvie, additional, Enouf, Vincent, additional, van der Werf, Sylvie, additional, Falchi, Alessandra, additional, Valette, Martine, additional, Lina, Bruno, additional, Schweiger, Brunhilde, additional, Biere, Barbara, additional, Duwe, Susanne, additional, Wedde, Marianne, additional, Buda, Silke, additional, Mentis, Andreas, additional, Kossyvakis, Athanasios, additional, Pogka, Vasiliki, additional, Papa-Konidari, Anna, additional, Melidou, Angeliki, additional, Gioula, Georgia, additional, Exindari, Maria, additional, Dunford, Linda, additional, Connell, Jeff, additional, Tuite, Grainne, additional, Duffy, Margaret, additional, Moran, Joanne, additional, Hogg, Bridget, additional, Waters, Allison, additional, de Gascun, Cillian, additional, Domegan, Lisa, additional, O'Donnell, Joan, additional, Joyce, Michael, additional, Rita Castrucci, Maria, additional, Puzelli, Simona, additional, Rizzo, Caterina, additional, Bella, Antonino, additional, Maraglino, Francesco, additional, Otorbaeva, Dinagul, additional, Saparova, Gulbarchyn, additional, Zamjatina, Natalija, additional, Pakarna, Gatis, additional, Nikiforova, Raina, additional, Mossong, Joël, additional, Opp, Matthias, additional, Meijer, Adam, additional, Overduin, Pieter, additional, de Lange, Marit, additional, Teirlinck, Anne, additional, Rimmelzwaan, Guus, additional, van Beek, Ruud, additional, Koopmans, Marion, additional, Donker, Gé, additional, Hungnes, Olav, additional, Bragstad, Karoline, additional, Guiomar, Raquel, additional, Pechirra, Pedro, additional, Cristóvão, Paula, additional, Costa, Inês, additional, Conde, Patricia, additional, Paula Rodrigues, Ana, additional, Elena Ivanciuc, Alina, additional, Burtseva, Elena, additional, Kirillova, Elena, additional, Mukasheva, Evgeniya, additional, Tichá, Elena, additional, Prosenc, Katarina, additional, Berginc, Nataša, additional, Pozo, Francisco, additional, Casas, Inmaculada, additional, Larrauri, Amparo, additional, Oliva, Jesús, additional, Delgado, Concha, additional, Ortiz de Lejarazu Leonardo, Raúl, additional, Brytting, Mia, additional, Wiman, Åsa, additional, Cordey, Samuel, additional, Rita Goncalves, Ana, additional, Perisa, Damir, additional, Born, Rita, additional, Ellis, Joanna, additional, Galiano, Monica, additional, Thompson, Catherine, additional, Zambon, Maria, additional, Pebody, Richard, additional, Gunson, Rory, additional, Reynolds, Arlene, additional, McMenamin, Jim, additional, McCaughey, Conall, additional, and Kearns, Cathriona, additional

Published
2018
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6. Erratum to “Predominance of influenza A(H3N2) virus genetic subclade 3C.2a1 during an early 2016/17 influenza season in Europe – Contribution of surveillance data from World Health Organization (WHO) European region to the WHO vaccine composition consultation for northern hemisphere 2017/18” [Vaccine 35 (2017) 4828–4835]

Author

Adlhoch, Cornelia, Snacken, René, Penttinen, Pasi, Pereyaslov, Dmitriy, Brown, Caroline, Redlberger-Fritz, Monika, Popow-Kraupp, Therese, Thomas, Isabelle, Barbezange, Cyril, Bossuyt, Nathalie, Jirincova, Helena, Nagy, Alexander, Trebbien, Ramona, Fischer, Thea K., Ikonen, Niina, Haveri, Anu, Lyytikäinen, Outi, Murtopuro, Satu, Behillil, Sylvie, Enouf, Vincent, van der Werf, Sylvie, Falchi, Alessandra, Valette, Martine, Lina, Bruno, Schweiger, Brunhilde, Biere, Barbara, Duwe, Susanne, Wedde, Marianne, Buda, Silke, Mentis, Andreas, Kossyvakis, Athanasios, Pogka, Vasiliki, Papa-Konidari, Anna, Melidou, Angeliki, Gioula, Georgia, Exindari, Maria, Dunford, Linda, Connell, Jeff, Tuite, Grainne, Duffy, Margaret, Moran, Joanne, Hogg, Bridget, Waters, Allison, de Gascun, Cillian, Domegan, Lisa, O'Donnell, Joan, Joyce, Michael, Rita Castrucci, Maria, Puzelli, Simona, Rizzo, Caterina, Bella, Antonino, Maraglino, Francesco, Otorbaeva, Dinagul, Saparova, Gulbarchyn, Zamjatina, Natalija, Pakarna, Gatis, Nikiforova, Raina, Mossong, Joël, Opp, Matthias, Meijer, Adam, Overduin, Pieter, de Lange, Marit, Teirlinck, Anne, Rimmelzwaan, Guus, van Beek, Ruud, Koopmans, Marion, Donker, Gé, Hungnes, Olav, Bragstad, Karoline, Guiomar, Raquel, Pechirra, Pedro, Cristóvão, Paula, Costa, Inês, Conde, Patricia, Paula Rodrigues, Ana, Elena Ivanciuc, Alina, Burtseva, Elena, Kirillova, Elena, Mukasheva, Evgeniya, Tichá, Elena, Prosenc, Katarina, Berginc, Nataša, Pozo, Francisco, Casas, Inmaculada, Larrauri, Amparo, Oliva, Jesús, Delgado, Concha, Ortiz de Lejarazu Leonardo, Raúl, Brytting, Mia, Wiman, Åsa, Cordey, Samuel, Rita Goncalves, Ana, Perisa, Damir, Born, Rita, Ellis, Joanna, Galiano, Monica, Thompson, Catherine, Zambon, Maria, Pebody, Richard, Gunson, Rory, Reynolds, Arlene, McMenamin, Jim, McCaughey, Conall, Kearns, Cathriona, and Broberg, Eeva

Published
2018
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