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 …

Vitamin D generates many extraskeletal effects due to the vitamin D receptor (VDR) which is
present in most tissues throughout the body. The possible role of vitamin D in infections is …

Purpose Hypovitaminosis D is a highly spread condition correlated with increased risk of
respiratory tract infections. Nowadays, the world is in the grip of the Coronavirus disease 19 …

Emerging evidence has shown that vitamin D deficiency may be related with community-
acquired pneumonia (CAP), but individually published studies showed inconclusive results …

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 insufficiency or deficiency (VDD) is a very prevalent condition in the general
population. Vitamin D is necessary for optimal bone mineralization, but apart from the bone …

Observational studies and randomised controlled studies suggest that vitamin D plays a role
in the prevention of acute respiratory tract infection (ARTI); however, findings are …

This systematic review was conducted to summarize and clarify the evidence on the
association between 25-hydroxyvitamin-D [25 (OH) D] concentrations and coronavirus …

Vitamin D is customarily involved in maintaining bone and calcium homeostasis. However,
contemporary studies have identified the implication of vitamin D in several cellular …

Background: Vitamin D has diverse and extensive effects on the immune system, including
activating innate immunity and reducing the overactive adaptive immune response. A …