1. IFCC Task Force on COVID-19 , Milano , Italy
2. IFCC WG on SARS-CoV-2 variants , Milano , 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 Medicine , University of Padova , Padova , Italy