The unexpected spectacular 2020 October COVID-19 boost in European countries correlated with the latitude, but not with the temperature preprint Oct 31
View ORCID ProfileStephan Walrand
doi: https://doi.org/10.1101/2020.10.28.20221176
Re-start date not associated with temperature, but was associated with latitude
- COVID-19 mortality rate highest North of 35 degrees latitude (Vitamin D) – April 20, 2020
- Less COVID-19 at high altitude due to more Vitamin D or other possible reasons – July 2020
Multiple Sclerosis incidence is still associated with latitude – Nov 2019
VitaminDWiki Items in both categories UV and Virus are listed here:
- 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
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Many European countries underwent an unexpected spectacular boost of the daily reported new COVID-19 cases between September 20th and October 18th, imposing in emergency new confinement rules in order to prevent hospitals saturation. The present study shows no correlation between the country COVID-19 boost date and its 2 weeks preceding temperature, but shows an impressive correlation with the country latitude. As the daily UV insolation earlier decreases in autumn for higher latitudes, this is an additional observation supporting the impact of low vitamin blood D level on the respiratory impairment in COVID-19 disease.
Restart date for each country