Beres, Stephen B. and Olsen, Randall J. and Long, S. Wesley and Langley, Ross and Williams, Thomas and Erlendsdottir, Helga and Smith, Andrew and Kristinsson, Karl G. and Musser, James M. (2024) Increase in invasive Streptococcus pyogenes M1 infections with close evolutionary genetic relationship, Iceland and Scotland, 2022 to 2023. Eurosurveillance, 29 (13): 2400129. ISSN 1560-7917

Abstract

Group A Streptococcus isolates of the recently described M1UK clade have emerged to cause human infections in several European countries and elsewhere. Full-genome sequence analysis of M1 isolates discovered a close genomic relationship between some isolates from Scotland and the majority of isolates from Iceland causing serious infections in 2022 and 2023. Phylogenetic analysis strongly suggests that an isolate from or related to Scotland was the precursor to an M1UK variant responsible for almost all recent M1 infections in Iceland.

People
Beres, Stephen B.
Author

Beres, Stephen B. and Olsen, Randall J. and Long, S. Wesley and Langley, Ross and Williams, Thomas and Erlendsdottir, Helga and Smith, Andrew and Kristinsson, Karl G. and Musser, James M. (2024) Increase in invasive Streptococcus pyogenes M1 infections with close evolutionary genetic relationship, Iceland and Scotland, 2022 to 2023. Eurosurveillance, 29 (13): 2400129. ISSN 1560-7917

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Olsen, Randall J.
Author

Beres, Stephen B. and Olsen, Randall J. and Long, S. Wesley and Langley, Ross and Williams, Thomas and Erlendsdottir, Helga and Smith, Andrew and Kristinsson, Karl G. and Musser, James M. (2024) Increase in invasive Streptococcus pyogenes M1 infections with close evolutionary genetic relationship, Iceland and Scotland, 2022 to 2023. Eurosurveillance, 29 (13): 2400129. ISSN 1560-7917

See full publications list
Long, S. Wesley
Author

Beres, Stephen B. and Olsen, Randall J. and Long, S. Wesley and Langley, Ross and Williams, Thomas and Erlendsdottir, Helga and Smith, Andrew and Kristinsson, Karl G. and Musser, James M. (2024) Increase in invasive Streptococcus pyogenes M1 infections with close evolutionary genetic relationship, Iceland and Scotland, 2022 to 2023. Eurosurveillance, 29 (13): 2400129. ISSN 1560-7917

See full publications list
Langley, Ross
Author

Beres, Stephen B. and Olsen, Randall J. and Long, S. Wesley and Langley, Ross and Williams, Thomas and Erlendsdottir, Helga and Smith, Andrew and Kristinsson, Karl G. and Musser, James M. (2024) Increase in invasive Streptococcus pyogenes M1 infections with close evolutionary genetic relationship, Iceland and Scotland, 2022 to 2023. Eurosurveillance, 29 (13): 2400129. ISSN 1560-7917

See full publications list
Williams, Thomas
Author

Beres, Stephen B. and Olsen, Randall J. and Long, S. Wesley and Langley, Ross and Williams, Thomas and Erlendsdottir, Helga and Smith, Andrew and Kristinsson, Karl G. and Musser, James M. (2024) Increase in invasive Streptococcus pyogenes M1 infections with close evolutionary genetic relationship, Iceland and Scotland, 2022 to 2023. Eurosurveillance, 29 (13): 2400129. ISSN 1560-7917

See full publications list
Erlendsdottir, Helga
Author

Beres, Stephen B. and Olsen, Randall J. and Long, S. Wesley and Langley, Ross and Williams, Thomas and Erlendsdottir, Helga and Smith, Andrew and Kristinsson, Karl G. and Musser, James M. (2024) Increase in invasive Streptococcus pyogenes M1 infections with close evolutionary genetic relationship, Iceland and Scotland, 2022 to 2023. Eurosurveillance, 29 (13): 2400129. ISSN 1560-7917

See full publications list
Smith, Andrew J.
Author

Pagnossin, Davide and Smith, Andrew and Weir, William and McDonald, Eisin and Coelho, Juliana and Ure, Roisin and Oravcová, Katarina (2025) Epidemiological and genomic characterisation of an outbreak of Streptococcus pyogenes emm5.23. Journal of Infection. ISSN 0163-4453 (In Press)

Pajak-Zajac, Malgorzata Z. and Dowdell, Adam and Potts, Hugh E. and Smith, Andrew and Diver, Declan (2025) Drain decontamination using in-situ generated ozone. Journal of Hospital Infection, 159. pp. 100-105. ISSN 0195-6701

Shaw, David and Torreblanca, Raquel Abad and Amin-Chowdhury, Zahin and Bautista, Adriana and Bennett, Desiree and Broughton, Karen and Casanova, Carlo and Choi, Eun Hwa and Claus, Heike and Corcoran, Mary and Cottrell, Simon and Cunney, Robert and Cuypers, Lize and Dalby, Tine and Davies, Heather and de Gouveia, Linda and Deghmane, Ala-Eddine and Desmet, Stefanie and Domenech, Mirian and Drew, Richard and Plessis, Mignon du and Duarte, Carolina and Fuursted, Kurt and Golden, Alyssa and Almeida, Samanta Cristine Grassi and Henares, Desiree and Henriques-Normark, Birgitta and Hilty, Markus and Hoffmann, Steen and Humphreys, Hilary and Jacobsson, Susanne and Johnson, Christopher and Jolley, Keith A. and Kawabata, Aníbal and Kozakova, Jana and Kristinsson, Karl G. and Krizova, Pavla and Kuch, Alicja and Ladhani, Shamez and Lâm, Thiên-Trí and Ayala, María Eugenia León and Lindholm, Laura and Litt, David and Maiden, Martin C. J. and Martin, Irene and Martiny, Delphine and Mattheus, Wesley and McCarthy, Noel D. and Meehan, Mary and Meiring, Susan and Mölling, Paula and Morfeldt, Eva and Morgan, Julie and Mulhall, Robert and Muñoz-Almagro, Carmen and Murdoch, David and Musilek, Martin and Novakova, Ludmila and Oftadeh, Shahin and Perez-Arguello, Amaresh and Pérez-Vázquez, Maria Dolores and Perrin, Monique and Prevost, Benoit and Roberts, Maria and Rokney, Assaf and Ron, Merav and Sanabria, Olga Marina and Scott, Kevin J. and Sempere, Julio and Siira, Lotta and de Lemos, Ana Paula Silva and Sintchenko, Vitali and Skoczyńska, Anna and Slotved, Hans-Christian and Smith, Andrew J. and Taha, Muhamed-Kheir and Toropainen, Maija and Tzanakaki, Georgina and Vainio, Anni and van der Linden, Mark P. G. and van Sorge, Nina M. and Varon, Emmanuelle and Moreno, Julio Vazquez and Vohrnova, Sandra and von Gottberg, Anne and Yuste, Jose and Brueggemann, Angela B. (2025) The importance of microbiology reference laboratories and adequate funding for infectious disease surveillance. Lancet Digital Health, 7 (4). e275-e281. ISSN 2589-7500

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Kristinsson, Karl G.
Author

Shaw, David and Torreblanca, Raquel Abad and Amin-Chowdhury, Zahin and Bautista, Adriana and Bennett, Desiree and Broughton, Karen and Casanova, Carlo and Choi, Eun Hwa and Claus, Heike and Corcoran, Mary and Cottrell, Simon and Cunney, Robert and Cuypers, Lize and Dalby, Tine and Davies, Heather and de Gouveia, Linda and Deghmane, Ala-Eddine and Desmet, Stefanie and Domenech, Mirian and Drew, Richard and Plessis, Mignon du and Duarte, Carolina and Fuursted, Kurt and Golden, Alyssa and Almeida, Samanta Cristine Grassi and Henares, Desiree and Henriques-Normark, Birgitta and Hilty, Markus and Hoffmann, Steen and Humphreys, Hilary and Jacobsson, Susanne and Johnson, Christopher and Jolley, Keith A. and Kawabata, Aníbal and Kozakova, Jana and Kristinsson, Karl G. and Krizova, Pavla and Kuch, Alicja and Ladhani, Shamez and Lâm, Thiên-Trí and Ayala, María Eugenia León and Lindholm, Laura and Litt, David and Maiden, Martin C. J. and Martin, Irene and Martiny, Delphine and Mattheus, Wesley and McCarthy, Noel D. and Meehan, Mary and Meiring, Susan and Mölling, Paula and Morfeldt, Eva and Morgan, Julie and Mulhall, Robert and Muñoz-Almagro, Carmen and Murdoch, David and Musilek, Martin and Novakova, Ludmila and Oftadeh, Shahin and Perez-Arguello, Amaresh and Pérez-Vázquez, Maria Dolores and Perrin, Monique and Prevost, Benoit and Roberts, Maria and Rokney, Assaf and Ron, Merav and Sanabria, Olga Marina and Scott, Kevin J. and Sempere, Julio and Siira, Lotta and de Lemos, Ana Paula Silva and Sintchenko, Vitali and Skoczyńska, Anna and Slotved, Hans-Christian and Smith, Andrew J. and Taha, Muhamed-Kheir and Toropainen, Maija and Tzanakaki, Georgina and Vainio, Anni and van der Linden, Mark P. G. and van Sorge, Nina M. and Varon, Emmanuelle and Moreno, Julio Vazquez and Vohrnova, Sandra and von Gottberg, Anne and Yuste, Jose and Brueggemann, Angela B. (2025) The importance of microbiology reference laboratories and adequate funding for infectious disease surveillance. Lancet Digital Health, 7 (4). e275-e281. ISSN 2589-7500

Beres, Stephen B. and Olsen, Randall J. and Long, S. Wesley and Langley, Ross and Williams, Thomas and Erlendsdottir, Helga and Smith, Andrew and Kristinsson, Karl G. and Musser, James M. (2024) Increase in invasive Streptococcus pyogenes M1 infections with close evolutionary genetic relationship, Iceland and Scotland, 2022 to 2023. Eurosurveillance, 29 (13): 2400129. ISSN 1560-7917

See full publications list
Musser, James M.
Author

Beres, Stephen B. and Olsen, Randall J. and Long, S. Wesley and Langley, Ross and Williams, Thomas and Erlendsdottir, Helga and Smith, Andrew and Kristinsson, Karl G. and Musser, James M. (2024) Increase in invasive Streptococcus pyogenes M1 infections with close evolutionary genetic relationship, Iceland and Scotland, 2022 to 2023. Eurosurveillance, 29 (13): 2400129. ISSN 1560-7917

See full publications list
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