earlier studies relate vitamin D deficiency to risk for Acute Respiratory Distress Syndromes in general. the "brandykinin hypothsis" links poor COVID-19 outcom

earlier studies relate vitamin D deficiency to risk for Acute Respiratory Distress Syndromes in general. the "brandykinin hypothsis" links poor COVID-19 outcomes to vitamin D deficiency as vitamin D is a regulator of the Renin Angiotensin System. https://elifesciences.org/articles/59177#s1 https://elifesciences.org/articles/59177#s1