These are a couple of modest sized studies that focus on statistical analysis. Their relatively small size and lack of uniform criteria for determining COVID-1

These are a couple of modest sized studies that focus on statistical analysis. Their relatively small size and lack of uniform criteria for determining COVID-19 severity and relation to mortality are a couple of the more obvious problems. This result is in stark contrast to what has been put forward by a group of around 200 prominent scientists at vitamindforall.org who site a large number of prominent studies that show dramatic correlation between low vitamin D levels and health problems especially immune system dysfunction.