1. Department of Infectious Diseases, University Hospital of Amiens-Picardie, Amiens, France
2. Department of Internal Medicine, University Hospital of Amiens-Picardie, Amiens, France
3. Department of Hygiene, University Hospital of Amiens-Picardie, Amiens, France
4. Department of Occupational Health, University Hospital of Amiens-Picardie, Amiens, France