There is considerable evidence that vitamin D reduces the risk and severity of COVID-19 (Mercola 2020
; Wimalawansa, 2020
). More than 50 clinical studies have published confirming that high doses of vitamin D administered early in persons with COVID-19 significantly reduce complications and the need for ICU admissions.
The SARS-CoV-2 infection (COVID-19) affected the entire world; many died, millions got sick, and the misery continues. Second and third waves of SARS.Cov-2 infection are devastating most countries.