Sunlight reduces COVID-19 risk: real-time meta analysis of 5 studies

Covid Analysis, Dec 2025
Sunlight for COVID-19
35th treatment shown to reduce risk in December 2021, now with p = 0.000052 from 5 studies.
Lower risk for mortality, hospitalization, recovery, and cases.
No treatment is 100% effective. Protocols combine treatments.
6,300+ studies for 210+ treatments. c19early.org
Meta Analysis
Significantly lower risk is seen for mortality, hospitalization, recovery, and cases. 5 studies from 5 independent teams in 4 countries show significant benefit.
Meta analysis using the most serious outcome reported shows 37% [22‑50%] lower risk. Results are similar for Randomized Controlled Trials.
Control Sunlight
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. All data and sources to reproduce this analysis are in the appendix.
Important missing comments or errors? Let us know.
Covid Analysis et al., Dec 2025, preprint, 1 author.
Please send us corrections, updates, or comments. c19early involves the extraction of 200,000+ datapoints from thousands of papers. Community updates help ensure high accuracy. Treatments and other interventions are complementary. All practical, effective, and safe means should be used based on risk/benefit analysis. No treatment or intervention is 100% available and effective for all current and future variants. We do not provide medical advice. Before taking any medication, consult a qualified physician who can provide personalized advice and details of risks and benefits based on your medical history and situation. IMA and WCH provide treatment protocols.
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