1. Hospital Preventive Medicine Service, University Hospital of Lausanne, Lausanne, Switzerland
2. Institute of Microbiology, University Hospital of Lausanne, Lausanne, Switzerland
3. NIHR Oxford Biomedical Research, John Radcliffe Hospital, Oxford, United Kingdom
4. Department of Physics and Centre for Networks and Collective Behaviour, University of Bath, Bath, United Kingdom
5. Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom