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A comment on The First Randomized Controlled Trial on Vitamin D and Covid-19. Parent comment

Re:The First Randomized Controlled Trial on Vitamin D and Co... by ReflectedImage on Thursday September 03, 2020 @02:21PM (#24367019)
Vitamin D has a direct effect on colds.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5949172/

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Re:The First Randomized Controlled Trial on Vitamin D and Co... by ouid on Thursday September 03, 2020 @02:42PM (#24367270)
Ok, but you know what has a really really direct effect on colds?

I swear, it's like people don't understand why we measure R_t. propagation is sigmoidal phenomenon. A reduction in transmission by 10% can easily lead to a reduction in prevalence by nearly 100%.

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Re:The First Randomized Controlled Trial on Vitamin D and Co... by ColanR on Thursday September 03, 2020 @02:23PM (#24367055)
Another study to back you up: https://pubmed.ncbi.nlm.nih.gov/16959053/
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