Study shows how vitamin D could halt lung inflammation in COVID-19
https://www.medicalnewstoday.com/articles/study-shows-how-vitamin-d-could-halt-lung-inflammation-in-covid-19

Scientists are sharing insight into how vitamin D could help in severe COVID-19 cases
by revealing how the vitamin functions to reduce hyper-inflammation caused by immune cells.

A new joint study by Purdue University and the National Institutes of Health (NIH) demonstrates
how an active metabolite of vitamin D — not a form sold OTC — is involved in “switching off” inflammation
in the body during infections such as COVID-19.