Vitamin D insufficiency may account for almost 90% of Covid-19 deaths
Please don't upvote this. [with all due respect to the OP]The one-page "paper" doesn't even mention stats for control group and what it does mention is completely inconclusive.BTW most people in the world who are quarantining have Vit D insufficiency/deficiency right now.PS.: just get your daily 15 min of sun to be safe.