Table of contents
- Does climate help modeling COVID-19 risk and to what extent?
- R2 >0.9 indicates a strong assocation
- VitaminDWiki -
16 studies in both categories Virus and UV - Other Virus and UV on the web
- Most of the
39 meta-analyses have found more Vitamin D is associated with less COVID - Reminded: UV produces Nitric Oxide (UVA) - perhaps enough from summer sun to make a difference
Does climate help modeling COVID-19 risk and to what extent?
PLOS x https://doi.org/10.1371/journal.pone.0273078
Charts of model vs actual COVID for various countries and cities
Model found the strongest atmospheric association of COVID to be with UV
A growing number of studies suggest that climate may impact the spread of COVID-19.
This hypothesis is supported by data from similar viral contagions, such as- SARS and the
- 1918 Flu Pandemic, and corroborated by
- US influenza data.
However, the extent to which climate may affect COVID-19 transmission rates and help modeling COVID-19 risk is still not well understood. This study demonstrates that such an understanding is attainable through the development of regression models that verify how climate contributes to modeling COVID-19 transmission, and the use of feature importance techniques that assess the relative weight of meteorological variables compared to epidemiological, socioeconomic, environmental, and global health factors. The ensuing results show that meteorological factors play a key role in regression models of COVID-19 risk, with ultraviolet radiation (UV) as the main driver. These results are corroborated by statistical correlation analyses and a panel data fixed-effect model confirming that UV radiation coefficients are significantly negatively correlated with COVID-19 transmission rates
Model learned from 14 months of data from 152 countries
Download the PDF from VitaminDWiki
R2 >0.9 indicates a strong assocation
VitaminDWiki -
16 studies in both categories Virus and UV This list is automatically updated
- COVID and other Virus fought by UV - many studies
- Model discovered: More UV, less COVID (many excellent charts) – Sept 2022
- COVID hospital deaths reduced 2X by 8 days of UVB – pilot RCT May 2022
- UV and COVID: Prevention and perhaps treatment
- 11 percent fewer COVID-19 deaths if lockdowns had allowed sunshine – Nov 2021
- COVID-19 deaths - 30 percent fewer if high UVA (US, etc) – Aug 2021
- 4th highest county in the US has a very low COVID-19 rate (high UV, high vitamin D)
- COVID-19 onset strongly associated with latitude in Europe (Vitamin D)– Jan 21, 2021
- UV provides the best explanation of COVID-19 variation in Italy (74 pcnt) – Nov 2020
- More UVB, less Coronavirus – including SARS-CoV-2 – Aug 2020
- Less COVID-19 at high altitude due to more Vitamin D or other possible reasons – July 2020
- Far fewer COVID-19 deaths in the summer (Europe, Canada)
- High-altitude Cusco, Peru has far lower rate of COVID-19 than others (high UVB and Vitamin D) - June 2020
- Influenza Virus aerosols killed by 10 minutes of sunlight (far faster if use UV-C) – Nov 2019
- Influenza Virus aerosols killed by 10 minutes of sunlight (faster if use UVB, UVCC– Nov 2019
- Ultraviolet light kills cold and flu viruses, and generates Vitamin D in the skin
Other Virus and UV on the web
- Low Temperature and Low UV Indexes Correlated with Peaks of Influenza Virus Activity in Northern Europe during 2010⁻2018 - March 2019 doi: 10.3390/v11030207 FREE PDF
- The virucidal effects of 405 nm visible light on SARS-CoV-2 and influenza A virus - Sept 2021 https://doi.org/10.1038/s41598-021-97797-0 FREE PDF
- Associations between predicted vitamin D status, vitamin D intake, and risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and coronavirus disease 2019 (COVID-19) severity April 2022 doi: 10.1093/ajcn/nqab389 FREE PDF
Most of the
39 meta-analyses have found more Vitamin D is associated with less COVID This list is automatically updated
- COVID and Vitamin D: 2X more likely to die if low, 2X more likely to survive if supplement – umbrella meta-analysis April 2024
- COVID fought by Vitamin D: 2.3X less likely to die of COVID if supplemented, 1.9 X less likely to become infected – meta-analysis March 2024
- COVID Vaccinations increased risk of cardiac deaths in youths by 19% - Aug 2023
- T1 Diabetes increased by 27% by second year of COVID – meta-analysis June 2023
- Yet another reason to take Vitamin D while pregnant – fight COVID - meta-analysis May 2023
- COVID death 1.5 X less likely if high vitamin D, emergency D (50K to 100K) is great – meta-analysis March 2023
- COVID ICU 3X less-likely if take any amount and type of Vitamin D – meta-analysis Jan 2023
- COVID and Vitamin D: any amount of D, at any time, for any duration reduced ICU - meta-analysis Dec 2022
- Worse COVID during 3Q pregnancy if 2.5 ng lower Vitamin D – meta-analysis Sept 2022
- Severe COVID 2.6 X less likely if supplement with Vitamin D – 26th meta-analysis - July 2022
- COVID Long-Haul prevalence increases with time: 50% at 4 months - meta June 2022
- COVID test positive is about half as likely if have Vitamin D – 24th meta-analysis - Jan 2022
- Small amounts of Vitamin D reduce Influenza risk by 22 percent (loading dose is far better) – meta-analysis Jan 2022
- Vitamin D fights COVID (54 studies of 1,400,000 people) – 23rd meta-analysis - Dec 2021
- COVID-19 treated by Vitamin D (reduce ICU by 3X) - 22nd meta-analysis - Dec 29, 2021
- COVID-19 death increased 2X if low Vitamin D (less than 10 to less than 30 ng) – 21st meta-analysis Dec 2021
- COVID-19 risk reduced by vitamin D supplementation – umbrella review of 7 meta-analysis – Oct 2021
- COVID-19 treated by Vitamin D (example: ICU reduced by 5X) – 20th meta-analysis Oct 13, 2021
- Severe COVID-19 2.5 X more likely if low vitamin D (23 studies) – 19th meta-analysis Oct 2021
- COVID-19 mortality extrapolates to zero at 50 ng of vitamin D – 18th Meta-analysis Sept 2021
- COVID-19 death 1.6 X more likely if low vitamin D (24 studies) – 17th meta-analysis Aug 2021
- Severe COVID-19 5X more likely if low vitamin D (23 studies) – 16th meta-analysis July 2021
- Severe COVID-19 3.5 more likely if low vitamin D (30 studies) – meta-analysis July 2021
- COVID-19 patients who had supplemented with Vitamin D were 3X less likely to enter ICU – June 2021
- Low Calcium associated with severe COVID-19 – several studies
- COVID-19 mortality 3X more likely if low vitamin D (999,179 people) – meta-analysis March 29, 2021
- COVID-19 was 2.6X more severe if very low Vitamin D (43 studies) – meta-analysis March 26, 2021
- Low Vitamin D associated with 2.7X more severe COVID-19 – 12th MA March 5, 2021
- Vitamin D supplementation fights COVID-19 – 11th meta-analysis Jan 24, 2021
- 3.7 X less likely to die of COVID-19 if supplemented with Vitamin D - meta-analysis Jan 5, 2021
- Less likely to test positive for COVID-19 if higher Vitamin D – meta-analysis Jan 6, 2021
- Vitamin D reduces COVID-19 by 80 percent - anonymous meta-analysis - Jan 5, 2021
- COVID-19 1.7X more likely to be severe if low Vitamin D - meta-analysis Oct 2020
- Low Vitamin D associated 1.8X increased risk of COVID-19 death in hospital – meta-analysis Nov 4, 2020
- Acute viral respiratory infections (RTI) reduced by Vitamin D - 20 reviews - Aug 2020
- Prudent to consider that Vitamin D has a role in COVID-19 – meta-analysis – Aug 7, 2020
- Risk of enveloped virus infection is increased 50 percent if poor Vitamin D Receptor - meta-analysis Dec 2018
- Hepatitis B patients have 2 ng lower level of Vitamin D – meta-analysis June 2019
- Influenza Vaccination not benefited by lowish levels of vitamin D – meta-analysis March 2018
Reminded: UV produces Nitric Oxide (UVA) - perhaps enough from summer sun to make a difference
- Ultraviolet A radiation and COVID-19 deaths in the USA with replication studies in England and Italy - Aug 2021 - https://doi: 10.1111/bjd.20093 FREE PDF
- Ultraviolet Radiation A (UVA): Modulates the Production of Nitric Oxide (NO) to Combat COVID-19 Production of Nitric Oxide (NO) Coronavirus Disease - Jan 2021 ResearchGate FREE PDF
- Nitric Oxide: The Missing Factor in COVID-19 Severity? - March 2022 https://doi: 10.3390/medsci10010003 FREE PDF
- Harnessing nitric oxide for preventing, limiting and treating the severe pulmonary consequences of COVID-19 - Oct 2020 - https://doi.org/10.1016/j.niox.2020.07.003 FREE PDF
- Putative roles of solar UVA and UVB exposure and vitamin D supplementation in reducing risk of SARS-CoV-2 infection and COVID-19 severity - April 2022 https://doi.org/10.1093/ajcn/nqab437 FREE PDF
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