Over 80% of Covid-19 patients in a hospital study have Vitamin D deficiency
Nobody seems to be asking a related question: in a sunny country like Israel vitamin D deficiency should be less common, does that translate into fewer Covid-19 cases?Well, there seem to be differences between different ethnic & religious groups, but on average vitamin D deficiency seems to be less prevalent in Israel: https://pubmed.ncbi.nlm.nih.gov/28647929/However Covid-19 cases don't seem to have been lacking in Israel https://www.worldometers.info/coronavirus/country/israel/