The severity of coronavirus 2019 infection (COVID-19) is determined by the presence of
pneumonia, severe acute respiratory distress syndrome (SARS-CoV-2), myocarditis …

Vitamin D, when activated to 1, 25‐dihydroxyvitamin D, is a steroid hormone that induces
responses in several hundred genes, including many involved in immune responses to …

Evidence suggests that vitamin D supplementation could potentially be effective either in
treatment or prevention of coronavirus disease 2019 (Covid‐19). Indeed, several studies …

Background As effective medication to treat COVID-19 is currently unavailable, preventive
remedies may be particularly important. Objective To examine the relationship between …

Vitamin D deficiency co-exists in patients with COVID-19. At this time, dark skin color,
increased age, the presence of pre-existing illnesses and vitamin D deficiency are features …

The outbreak of COVID-19 has created a global public health crisis. Little is known about the
protective factors of this infection. Therefore, preventive health measures that can reduce the …

Results: The 28 studies summarized in this review provide observational findings that
vitamin D levels are related to the incidence, severity, and mortality rate of COVID-19 …

OBJECTIVES Although vaccination has started, coronavirus disease 2019 (COVID-19)
poses a continuing threat to public health. Therefore, in addition to vaccination, the use of …

Vitamin D modulates the systemic inflammatory response through interaction with immune
system. As such, it has a possible protective role against the risk of respiratory tract …

Vitamin D is a hormone that acts on many genes expressed by immune cells. Evidence
linking vitamin D deficiency with COVID-19 severity is circumstantial but considerable—links …