1 Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, UK.
2 Institute of Virology, Charité, Universitätsmedizin Berlin, Berlin, Germany.
3 Centre for GeoGenetics, Natural History Museum, University of Copenhagen, Copenhagen, Denmark.
4 Archaeological Laboratory, Faculty of History and Law, A. A. Baitursynov Kostanay State University, Kostanay, Kazakhstan.
5 Saryarka Archaeological Institute, Karaganda State University, Karaganda, Kazakhstan.
6 Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ, USA.
7 Department of Biology, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar, Mongolia.
8 Laboratory of Virology, Institute of Veterinary Medicine, Mongolian University of Life Sciences, Ulaanbaatar, Mongolia.
9 National Academy of Sciences, Bishkek, Kyrgyzstan.
10 Pavlodar State University, Pavlodar, Kazakhstan.
11 Centre for Baltic and Scandinavian Archaeology, Schleswig, Germany.
12 Institute for History of Medicine and Foreign Languages of the First Faculty of Medicine, Charles University, Prague, Czech Republic.
13 Margulan Institute of Archaeology, Almaty, Kazakhstan.
14 N. N. Miklouho-Maklay Institute of Ethnology and Anthropology, Russian Academy of Sciences, Moscow, Russia.
15 South Ural Department, Institute of History and Archaeology UBRAS, South Ural State University, Chelyabinsk, Russia.
16 Department of Archaeology and Classical Studies, Stockholm University, Stockholm, Sweden.
17 Matrica Museum, Százhalombatta, Hungary.
18 Department of Historical Studies, University of Gothenburg, Gothenburg, Sweden.
19 Department of Physical Anthropology, Peter the Great Museum of Anthropology and Ethnography, Saint-, Petersburg, Russia.
20 Laboratoire d'Anthropobiologie Moléculaire et d'Imagerie de Synthèse, CNRS UMR 5288, Université de Toulouse, Université Paul Sabatier, Toulouse, France.
21 Department of Bio and Health Informatics, Technical University of Denmark, Kongens Lyngby, Denmark.
22 Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany.
23 Institute of Medical Virology, Justus Liebig University of Giessen, Giessen, Germany.
24 National Reference Centre for Hepatitis B and D Viruses, German Center for Infection Research (DZIF), Giessen, Germany.
25 Department of Viroscience, Erasmus Medical Centre, Rotterdam, The Netherlands.
26 German Center for Infection Research (DZIF), Braunschweig, Germany.
27 Centre for GeoGenetics, Natural History Museum, University of Copenhagen, Copenhagen, Denmark. ewillerslev@snm.ku.dk.
28 Cambridge GeoGenetics Group, Department of Zoology, University of Cambridge, Cambridge, UK. ewillerslev@snm.ku.dk.
29 Wellcome Trust Sanger Institute, Hinxton, UK. ewillerslev@snm.ku.dk.
In Fig. 2 of this Letter, the 'E' and 'G' clade labels were inadvertently reversed, and in Table 2 the genotype of DA27 was 'D1' instead of 'D5'. These have been corrected online.