A just published study, jointly led by Bar-Ilan University and Galilee Medical Center, looked for correlations between pre-infection serum 25-hydroxyvitamin D (25(OH)D) level and COVID-19 severity and mortality. Patients with a vitamin D deficiency, defined as < 20 ng/mL, were 14 times more likely to have severe or fatal COVID-19 disease than patients with 25(OH)D ≥ 40 ng/mL.
Overall, a low vitamin D status was present in 87.4% of patients with severe or critical COVID-19, but only 34.3% of patients with mild to moderate disease were vitamin D deficient. Mortality among patients with sufficient vitamin D was 2.3%, but 25.6% in vitamin D deficient patients,an eleven-fold difference. Although not directly comparable, it is interesting in this connection to not that, according to current UK data (see Page 43), there is only a three-fold difference in all-ages death rate from Covid between the vaccinated and the unvaccinated.
It would seem that instead of seeking to instigate a civil insurrection by brutally and mendaciously insulting vax mandate protesters, Justin Trudeau would have done better to suggest that the unvaxxed take a cheap nutritional supplement not known to have killed anyone when taken in moderate quantity, and certainly not to have killed thousands, while injuring tens of thousands more, as is true of the vax.
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Risk factors included obesity, diabetes, immunosuppression, kidney disease, neurologic disease, pulmonary disease, cardiac disease, liver disease.