@ClnHz @ruth_mottram Agreed that less sun = more indoors = higher chances of contamination!
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@ruth_mottram @martincollignon @ClnHz I guess we can exclude Vitamin D as a reason. It is a fat soluble vitamin with a massive storage, if that were the reason there would not be a clear jump, but a very smooth change.
UV kills viruses. That might be part of it.
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@kristianpagh @ruth_mottram @martincollignon @ClnHz Then you are making the case that vitamin D production, rather than vitamin D levels are what counts for infections. The seasonal cycle is modest; we store a lot in our fat deposits.
That we need an explanation could also be jumping to conclusions. tylervigen.com/spurious-corre…
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@kristianpagh @ruth_mottram @martincollignon @ClnHz The claim is for the starting date of the surge in positive cases in all of Europe, not just for higher latitudes.
Is Sweden included in the "higher latitudes"? I would call this modest and gradual changes in Vit. D concentrations: twitter.com/VariabilityBlo…
Victor Venema@VariabilityBlog
@gjcats @ruth_mottram One of my favorite German science channels just did a video on Vitamin D. youtube.com/watch?v=ud9d5c… It showed a study on the seasonal cycle of Vit. D in Sweden. It is much smaller than the variability in the population. Looks like storage does a lot. ncbi.nlm.nih.gov/pmc/articles/P…
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@kristianpagh @ruth_mottram @martincollignon @ClnHz People should get more sun, but that is not the question here.
The decrease in vitamin D concentrations is only a few percent per month in autumn. And there is a huge spread from person to person. How does that explain a sudden take off in the number of positive infection cases?
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