Significantly lower risk is seen for mortality, hospitalization, recovery, and cases. 6 studies from 6 independent teams in 4 countries show significant benefit.

Meta-analysis using the most serious outcome reported shows 39% [26‑50%] lower risk. Results are similar for Randomized Controlled Trials.

No treatment is 100% effective. Protocols combine safe and effective options with individual risk/benefit analysis and monitoring. Sunlight currently has no early treatment studies. Two studies are ecological studies reporting results per specified increases in UVA/sunlight exposure. All data and sources to reproduce this analysis are in the appendix.