1. IFCC SARS-CoV-2 Variants Working Group , Verona , Italy
2. IFCC Task Force on COVID-19 , Verona , Italy
3. Section of Clinical Biochemistry and School of Medicine, University of Verona , Verona , Italy
4. Clinical Laboratory, Division of Nephrology and Hypertension, Cincinnati Children’s Hospital Medical Center , Cincinnati , OH , USA
5. Department of Laboratory Medicine , Clinique St-Luc Bouge , Namur , Belgium
6. Department of Medicine , University of Padova , Padova , Italy