Intervention	Vitamin D
Suggested dose	5,000 IU po qd in the absence of serum levels
Mechanism(s) of action against non-COVID-19 viruses55-78	Favorably modulate cellular defense and repair mechanisms: Activation of macrophages Stimulation of anti-microbial peptides Modulation of defensins Modulation of TH17 cells Favorably modulate viral-induced pathological cellular processes: Reduction in cytokine expression Modulation of TGF beta
Outcomes data supporting their mitigating effects on illness from other viral strains	Reduce progression from colonization to illness Reduce the severity and duration of acute symptoms and complications
Strength of evidence	Limited
Risk of harm79-82	Mimimal