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 This work aims to review and discuss controversial topics in the field of vitamin D,
SARS-CoV-2 infection, and COVID-19. Methods The International Conferences …

Vitamin D is known not only for its importance for bone health but also for its biologic
activities on many other organ systems. This is due to the presence of the vitamin D receptor …

Background We sought to evaluate the association between vitamin D deficiency and the
severity of coronavirus disease 2019 (COVID‐19) infection. Methods Multiple databases …

Purpose Vitamin D deficiency/insufficiency may increase the susceptibility to coronavirus
disease 2019 (COVID-19). We aimed to determine the association between vitamin D …

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 …

Context Long COVID is an emerging syndrome affecting 50% to 70% of COVID-19 survivors
that still lacks predicting factors. Objective Due to the extraskeletal effects of vitamin D, we …

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 …

Purpose To provide a precise summary and collate the hitherto available clinical evidence
on the effect of vitamin D supplementation on clinical outcomes in COVID-19 patients …

Context: Populations severely affected by COVID-19 are also at risk for vitamin D deficiency.
Common risk factors include older age, chronic illness, obesity, and non-Caucasian race …