"Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness"
"Based on the pre-infection values, patients with vitamin D deficiency (<20 ng/mL) were times more likely to have severe or critical disease than patients with 25(OH)D ≥40 ng/mL"
Vitamin D supplementation is both safer and more effective than vaccines.
Dr. Fauci has revealed that he personally takes 6000 IUs of vitamin D-3 per day.