1. 3Institute of Medical Virology, University Hospital Frankfurt, Frankfurt, Germany
2. 1CIBIO/InBIO- Research Network in Biodiversity and Evolutionary Biology, Campus de Vairão, University of Porto, Vairão, Portugal
3. 5Institute of Virology, Technische Universität München/Helmholtz Zentrum, Munich, Germany
4. 4Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
5. 2Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
6. 6Gene Center and Department of Biochemistry, LMU München, Munich, Germany
7. 7Department of Infectious Diseases, Integrative Virology, University Hospital Heidelberg, Heidelberg, Germany
8. 8CITS - Centro de Investigação em Tecnologias de Saúde, CESPU, Gandra, Portugal
9. 9University of Trento, Centre for Integrative Biology, Trento, Italy