1. Department of Pharmaceutical Sciences, Division of Pharmacognosy, Faculty of Life Sciences, University of Vienna, Vienna, Austria
2. Vienna Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Vienna, Austria
3. Section of Experimental Virology, Department of Medical Microbiology, Jena University Hospital, Germany
4. Robert Koch Institute, Unit 17: Influenza and Other Respiratory Viruses, National Reference Centre for Influenza, Germany