

Both vitamin D and K have been proposed as potential modulators of this process. 5Department of Biochemistry, Cardiovascular Research Institute Maastricht, University of Maastricht, Maastricht, Netherlandsīackground: Pathology during COVID-19 infection arises partly from an excessive inflammatory response with a key role for interleukin (IL)-6.4Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, Netherlands.3Department of Clinical Chemistry, Canisius-Wilhelmina Hospital, Nijmegen, Netherlands.2Department of Internal Medicine, Canisius-Wilhelmina Hospital, Nijmegen, Netherlands.1Department of Pulmonary Medicine, Canisius-Wilhelmina Hospital, Nijmegen, Netherlands.Schurgers 5, Rob Janssen 1 † and Jona Walk 2 * †

van den Ouweland 3, Henny van Daal 3, Cornelis Kramers 4, Leon J.
