1. North‐Western Tuscany Blood Bank Pisa University Hospital Pisa Italy
2. Division of Hematology and Transfusion Medicine Mantua Hospital Mantua Italy
3. Department of Anesthesiology and Perioperative Medicine Mayo Clinic Rochester Minnesota USA
4. Department of Kinesiology and Community Health University of Illinois Urbana‐Champaign Urbana Illinois USA
5. Department of Molecular Microbiology and Immunology Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA
6. National Institute for Infectious Diseases “Lazzaro Spallanzani” IRCCS Rome Italy