VWF and COVID-19: Goshua et al. examined the blood markers of endothelial cell damage (VWF antigen and thrombomodulin) and platelet activation (soluble P-selectin derived from Weibel-Palade bodies) in 68 patients with COVID-19, comparing 48 ICU patients to 20 non-ICU patients, and 13 non-hospitalized and asymptomatic controls [88].