Vitamin D of 30-40 ng fights COVID, Dr. Grimes on Liverpool Study
Covid-19 and Vitamin D – study from Liverpool
His post has 2 previous graphs of Vitamin D vs skin color

SE Asians in England had far less Vitamin D

Liverpool study
📄 Download the Liverpool PDF from VitaminDWiki
VitaminDWiki – COVID-19 treated by Vitamin D - studies, reports, videos
{include}