1. Department of Infectious Diseases, University Hospital of Reims
2. UR3797-Viellissement Fragilité, Reims Champagne Ardennes University, Reims
3. Department of Infectious Diseases, Hospital of Troyes, Troyes
4. Reims Champagne-Ardenne University, EA-4684/SFR CAP-SANTE, Reims, France.