Objective The relationship between 25-hydroxyvitamin D3 (25 (OH) D), the surrogate marker
for vitamin D3, serum concentration and COVID-19 has come to the forefront as a potential …

Introduction Vitamin D levels have been reported to be associated with COVID-19
susceptibility, severity, and mortality events. We performed a meta-analysis of randomized …

Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes a very
wide range of disease severity: from completely asymptomatic to fatal, and the reasons for …

Vitamin D (VitD) deficiency is considered a global problem and might be associated with
increased susceptibility to COVID‐19 illness. In the light of COVID‐19 pandemic, VitD might …

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 …

The outbreak of COVID‐19 emerged in December 2019 rapidly spread across the globe and
has become pandemic. Little is known about the protective factors of this infection, which is …

Objectives Extensive evidence links low vitamin D status and comorbidities with coronavirus
disease 2019 (COVID-19) outcomes, but the results of published studies are contradictory …

In the search for factors affecting incidence and lethality of the current COVID-19 pandemic,
recent association studies explored the possible role of vitamin D deficiency. Altogether …

Abstract Coronavirus disease (COVID-19) is a major pandemic and now a leading cause of
death worldwide. Currently, no drugs/vaccine is available for the treatment of this disease …

The COVID-19 pandemic poses an unprecedented threat to human health, health care
systems, public life, and economy around the globe. The repertoire of effective therapies for …