Background Observational studies suggest that the risk and clinical prognosis of coronavirus
disease 2019 (COVID-19) are related to low vitamin D status; however, the data are …

Background: Open Access Editor's Choice Systematic Review COVID-19 Mortality Risk
Correlates Inversely with Vitamin D3 Status, and a Mortality Rate Close to Zero Could …

Cytokine release syndrome (CRS) is a major cause of the multi-organ injury and fatal
outcome induced by SARS-CoV-2 infection in severe COVID-19 patients. Metabolism can …

The present study examined the relationship between polymerase chain reaction (PCR) test
positivity and clinical outcomes of vitamin D levels measured within the 6 months before the …

Vitamin D is associated with biological activities of the innate and adaptive immune systems,
as well as inflammation. In observational studies, an inverse relationship has been found …

Objective The 2019 coronavirus disease (COVID-19) pandemic has disproportionally
affected a variety of patients with underlying risk factors such as respiratory and …

The prevalence and etiology of COVID-19's impact on brain health and cognitive function is
poorly characterized. With mounting reports of delirium, systemic inflammation, and …

Coronavirus disease 2019 (COVID-19) has quickly become a global pandemic. Reports
from different parts of the world indicate that a significant proportion of people who have …

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 …

Background Previous studies have related vitamin D supplementation to a lower risk of
acute respiratory tract infection. Emerging evidence suggests that vitamin D insufficiency is …