Background The role of vitamin D in the susceptibility and severity of various viral diseases
has been well documented. Recently, some reports highlighted the possible importance of …

Background Evidence recommends that vitamin D might be a crucial supportive agent for
the immune system, mainly in cytokine response regulation against COVID‐19. Hence, we …

Molecular studies have demonstrated the importance of the exacerbated immune response
to SARS-CoV-2 infection, called the cytokine storm, in more severe COVID-19. The …

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 …

Abstract Coronavirus disease (COVID-19) is an infectious disease caused by a new virus
that causes respiratory illness. Older adults and individuals who have pre-existing chronic …

Abstract The coronavirus disease 2019 (COVID-19) pandemic was declared a public health
emergency of international concern by the World Health Organization. COVID-19 has high …

There is now sufficient evidence to support that vitamin D deficiency may predispose to
SARS-CoV-2 infection and increase COVID-19 severity and mortality. It has been suggested …

Coronavirus Disease 2019 (COVID-19) pandemic remains a major public health threat in
most countries. The causative severe acute respiratory syndrome coronavirus 2 (SARS-CoV …

Abstract The coronavirus disease 2019 (COVID-19) pandemic has led to a declaration of a
Public Health Emergency of International Concern by the World Health Organization. As of …

Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome
coronavirus-2 (SARS-CoV-2) is still an ongoing global health crisis. Immediately after the …