Coronavirus: Vitamin D deficiency would increase the risk of contagion – Health


Are vitamin D levels associated with the results of tests for the covid-19? That was the question that started the study of two doctors who are part of the Department of Medicine at the University of Chicago (USA).

To answer the question, the researchers worked with the data of 489 patients who underwent the test from March 3 to April 10, 2020.

The goal was to have their vitamin D status tested one year before each of them had been tested and to confirm if they were more likely to test positive if they had vitamin D deficient levels.

(Can read: Vitamin D, a necessary ally in days of confinement)

Research titled ‘Association of Vitamin D Status and Other Clinical Features with COVID-19 Test Results’ found that “Of 172 patients whose most recent vitamin D level was deficient, 32 tested positive for COVID-19 compared to 39 participants whose last vitamin D level was not deficient.”

The study ensures that the relative risk of testing positive for COVID-19 was 1.77 times higher for patients with probable vitamin D deficient status compared to patients with probable sufficient vitamin D status. “A difference that it was statistically significant “they point out.

The text, published in the magazine JAMA Network Open, explains that vitamin D strengthens innate immunity, thus “It could be expected that the infection and transmission of the disease caused by the coronavirus will decrease.”

This claim is made after stating that “vitamin D modulates immune function through effects on dendritic cells and T cells that can promote viral shedding and reduce inflammatory responses that produce symptoms.”

(Also: The bullying pandemic that has unleashed the coronavirus)

These findings could make people think that taking supplements of this vitamin could be a way to prevent covid-19. However, other studies have clarified that this is not the case.

For example, an international study published in May in the BMJ, Nutrition, Prevention and Health confirmed that there is not enough scientific evidence to show that this vitamin may be beneficial in preventing or treating coronavirus.

Even the scientists who conducted that study believe that There is currently no firm link between vitamin D intake and resistance to respiratory tract infections.

This guide advises taking a vitamin D supplement of ten micrograms daily in the winter months, from October to March, and throughout the year if outdoor exposure is limited.

(In context: Vitamin D supplements do not help prevent covid-19)

Despite this, the study by members of the University of Chicago insists that “randomized clinical trials of interventions are needed to reduce vitamin D deficiency and to determine if those interventions could reduce the risk of contracting COVID-19.”

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