About the Authors

Åsa Alsiö

Affiliation Department of Infectious Diseases/Virology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden

Karolina Rembeck

Affiliation Department of Infectious Diseases/Virology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden

Galia Askarieh

Affiliation Department of Infectious Diseases/Virology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden

Peer Brehm Christensen

Affiliation Department of Infectious Diseases, University of Southern Denmark, Odense, Denmark

Martti Färkkilä

Affiliation Department of Gastroenterology, Helsinki University, Helsinki, Finland

Nina Langeland

Affiliation Department of Medicine, Haukeland University Hospital and Institute of Medicine, University of Bergen, Bergen, Norway

Mads Rauning Buhl

Affiliation Department of Infectious Diseases, Aarhus University, Aarhus, Denmark

Court Pedersen

Affiliation Department of Infectious Diseases, University of Southern Denmark, Odense, Denmark

Kristine Mørch

Affiliation Department of Medicine, Haukeland University Hospital and Institute of Medicine, University of Bergen, Bergen, Norway

Bart L. Haagmans

Affiliation Department of Virology, Erasmus MC, Rotterdam, The Netherlands

Salmir Nasic

Affiliation Department of Research and Development/Statistics, Skaraborg Hospital, Skövde, Sweden

Johan Westin

Affiliation Department of Infectious Diseases/Virology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden

Kristoffer Hellstrand

Affiliation Department of Infectious Diseases/Virology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden

Gunnar Norkrans

Affiliation Department of Infectious Diseases/Virology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden

Martin Lagging

martin.lagging@medfak.gu.se

Affiliation Department of Infectious Diseases/Virology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden

Competing Interests

The authors have read the journal's policy and have the following conflicts: Unrestricted grants from Roche affiliates in the Nordic region also supported this study. This does not alter the authors’ adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: ÅA KR PC ML. Performed the experiments: ÅA PC ML JW. Analyzed the data: ML ÅA KR GA SN JW. Contributed reagents/materials/analysis tools: PC MF NL MRB CP KM BH GN. Wrote the paper: ML ÅA KR KH.