1. Department of Periodontology Justus‐Liebig‐University Giessen Germany
2. Department of Oral Medicine, Periodontology and Diagnosis Faculty of Dentistry Ain Shams University Cairo Egypt
3. Institute of Medical Microbiology Justus‐Liebig‐University of Giessen Giessen Germany
4. German Center For Infection Research (DZIF) Partner Site Giessen‐Marburg‐Langen Schubertstrasse B1 Giessen Germany
5. Institute of Biochemistry Justus‐Liebig‐University of Giessen Giessen Germany