1. Department of Virology Paul‐Ehrlich‐Institut Langen Germany
2. Department Safety of Medicinal Products and Medical Devices Paul‐Ehrlich‐Institut Langen Germany
3. Department of Medical Biotechnology Paul‐Ehrlich‐Institut Langen Germany
4. Blood Donation Service Saar‐Pfalz Klinikum Saarbruecken Saarbruecken Germany