Staff

Paul Torgerson - head of unit

Paul Torgerson
Prof. Dr. Paul Torgerson

Professor Torgerson is a British trained veterinarian and graduated from Cambridge University in 1986. Subsequently after a period in clinical practice, first as a large animal intern at Glasgow Veterinary School followed by agricultural veterinary practice, Professor Torgerson returned to Cambridge to complete a PhD in Parasitology. He was subsequently appointed as a lecturer at University College Dublin where he developed an interest in parasite epidemiology. In 2002 he was invited to lead a group on parasite epidemiology at the Institute of Parasitology in Zurich and remained there until 2008. Following a brief spell at Ross University in The Caribbean, Professor Torgerson was appointed to the newly created chair of veterinary epidemiology in Zurich from late 2009. Professor Torgerson also holds the Diploma of the European College of Veterinary Public Health with a speciality in population medicine and the Diploma of the European Veterinary Parasitology College.
Professor Torgerson’s publications can be found at:
Publications Researcher ID
Google Scholar

Contact Prof. Paul Torgerson
Office: TBA 10.11
Phone: +41 44 635 90 41
E-mail: paul.torgerson@access.uzh.ch

Anou Dreyfus - senior scientist

Anou Dreyfus
Dr. Anou Dreyfus

Having travelled extensively since her childhood in low income countries, Dr. Dreyfus has been sensitized to health issues in a setting of poverty from early on. This -together with her interest in science and veterinary medicine- lead Dr. Dreyfus to pursue a career as a veterinary epidemiologist with a special interest in public health and neglected infectious diseases. In 2001 she graduated as a veterinarian from University of Berne, where she also was awarded her doctorate (2002-03). Dr. Dreyfus obtained her epidemiological training at the Royal Veterinary College and School of Hygiene and Tropical Medicine in London (2005, postgraduate MSc) and at Massey University, New Zealand, where she obtained a PhD on leptospirosis in humans and pastoral livestock in 2013. She gained national and international work experience in the field of public health, working for the Food and Agriculture Organization in Rome in a BSE capacity building project in Serbia (2003-04) and for the Federal Office of Public Health in Berne on pandemic influenza planning among many other projects (2006-08).
In February 2013 she joined the Veterinary Epidemiology Group in Zurich as senior research assistant, lecturer and statistical consultant. Her main research area of interest is the investigation of the leptospirosis burden in humans and animals, improvement of Leptospira laboratory capacity in a resource poor setting and the development of control strategies nationally and globally. She is an active member of GLEAN, the Global Leptospirosis Environmental Action Network (http://glean-lepto.org) of WHO.

Contact Dr. Anou Dreyfus
Office: TBA 10.15A
Phone:+41 44 635 90 51
E-mail: adreyfus@vetclinics.uzh.ch

Sonja Hartnack - senior scientist

Sonja Hartnack
Dr. Sonja Hartnack

Dr. Hartnack studied veterinary medicine at the University of Munich and at the University of Liege from 1994-2000. She was awarded her doctorate following studies in animal nutrition from University of Munich in 2002. Between 2002 and 2009 she was employed as a postdoctoral researcher on a number of projects at the Veterinary Faculties of Munich, Leipzig, and the Vetsuisse Faculty in Bern. She joined the Veterinary Epidemiology Group in Zurich in early 2010. Dr. Hartnack holds the Diploma in Veterinary Virology from the Veterinary Chamber of Saxony and the Diploma of the European College of Veterinary Public Health with a speciality in Population Medicine.
Dr. Hartnack’s publications can be found at:
Publications Researcher ID

Contact Dr. Sonja Hartnack
Office: TBA 10.15
Phone: +41 44 635 90 51
E-mail: sonja.hartnack@access.uzh.ch

Simon Rüegg - senior scientist

Simon Ruegg
Dr. Simon Rüegg

Dr Simon Rüegg is veterinarian. He completed a doctorate (DVM) and a PhD in epidemiology, biostatistics and molecular diagnostics of tick-borne equine piroplasmoses. Throughout field projects in southern Mongolia and as a veterinary practitioner he gained a solid understanding of practical aspects of veterinary medicine and epidemiology. From 2013 he worked as postdoc at the Veterinary Public Health Institute at the Vetsuisse-Faculty of Berne conducting an EMIDA project on cost efficacy of surveillance for vector-borne diseases and supervising a doctoral student. In September 2013 he has joined the Veterinary Epidemiology Group in Zurich as senior research assistant and lecturer. He also participates in the statistic consultancy. His research interest is the application of the theory of complex adaptive systems to medicine, in particular its impact on the medical decision making process, the relation between scientific, emotive, financial, ethical and social aspects, and the sustainability of medical practices. He also investigates the application of complex dynamical systems metrics to medical time series and is involved in several epidemiological investigations in Switzerland He is co-leading a working group of the COST Action "Network on the Evaluation of One Health", establishing an evaluation framework. He contributes to the editorial review board of the journal Epidemiology and Infection, the Journal of Zoo and Wildlife Medicine, Frontiers in Veterinary Science and teaches for the Swiss Association of Zoological Traders (Verband Zoologischer Fachgeschäfte Schweiz). Furthermore, he is member of the European Association of Zoo and Wildlife Veterinarians, Swiss Association of Exotic Pets, Zoo and Wildlife, Swiss Association of Veterinarians. His publication list can be consulted here:
Publications Researcher ID
Google Scholar

Contact Dr. Simon Ruegg
Office: TBA 10.15
Phone: +41 44 635 90 51
E-mail: srueegg@vetclinics.uzh.ch

Martin Hitziger - postdoctoral fellow

Martin Hitziger
Dr. Martin Hitziger

I am environmental scientist and management scientist with a passion for systems thinking, sustainability, global health and international development. My research bridges the divides between quantitative, qualitative and transdisciplinary/participative methods. Building on activities in environmental decision analysis and support for impact assessments, strategic planning and stakeholder engagements in the European context, I have several years experience in designing, coordinating and facilitating collaborative research projects for global health with local and indigenous partners in Latin America (http://www.uns.ethz.ch/res/models/macocc). Currently, I am working at the science-policy interface in advancing methods for complex systems evaluation in integrated health surveillance. In this project, I work together with the Network for the Evaluation of One Health (a European Cost-Action Initiative: http://neoh.onehealthglobal.net), and the International Society for Disease Surveillance (http://www.syndromic.org).


Contact Dr. Martin Hitziger
Office: TBA 10.13
Phone: +41 44 63 58495
E-mail: martin.hitziger2@uzh.ch

Seraina Jäger - doctoral student

Seraina Jäger
Seraina Jäger

Seraina Jaeger studied veterinary medicine at the University of Zürich from 2009-2015. Since her graduation, she works as practicing veterinarian for farm and small animals in Switzerland. In July 2015 she started her doctoral thesis supervised by Prof. Paul Torgerson and Dr. Simon Rüegg. In the course of her thesis she investigates if the identification of acute phase proteins in milk (in particular Amyloid A) is as sensitive as or more sensitive than the somatic cell count for mastitis diagnosis, using bacteriological culture as the gold standard. Furthermore she wants to detect if acute phase proteins in milk would be suitable markers not only for clinical but also for subclinical mastitis.


Contact Seraina Jäger
Clinica Alpina, Schuol, Switzerland
E-mail: seraina.jaeger@uzh.ch