Duration of Protection From Pneumonia After Pneumococcal Vaccination in Hemodialysis Patients (DOPPIO): Protocol for a Prospective Multicenter Study

Sibylle Mellinghoff   ^{1, 2, 3 *} , MD ;   Gero von Gersdorff   ^{4, 5 *} , MD ;   Caroline Bruns   ^{1, 2, 6} , PhD ;   Kerstin Albus   ^{1, 2, 6} , PhD ;   Vassiliki Dimitriou   ^{1, 2, 6} , PhD ;   Angela Steinbach   ^{1, 2, 6} , PhD ;   Mathias Schaller   ⁴ , PhD ;   Jörg Janne Vehreschild   ¹ , MD ;   Oliver A Cornely   ^{1, 2, 6, 7} , MD ;   Blasius Janusch Liss   ^{8, 9} , MD

¹ Centre for Integrated Oncology Aachen Bonn Cologne Duesseldorf and Excellence Centre for Medical Mycology, Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany

² German Centre for Infection Research, Partner Site Bonn-Cologne, Cologne, Germany

³ Faculty of Medicine and University Hospital Cologne, Translational Research, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany

⁴ Faculty of Medicine and University Hospital Cologne, Department II of Internal Medicine – QiN-group, University of Cologne, Cologne, Germany

⁵ Kuratorium fuer Haemaodialyse (KfH)-Board of Trustees for Dialysis and Kidney Transplantation, Neu-Isenburg, Germany

⁶ Translational Research, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany

⁷ Clinical Trials Centre Cologne (ZKS Köln), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany

⁸ Department I of Internal Medicine, Helios University Hospital Wuppertal, Wuppertal, Germany

⁹ School of Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany

*these authors contributed equally