The first incidence of COVID-19 was reported in the Wuhan city of Hubei province in China
in late December 2019. Because of failure in timely closing of borders of the affected region …

The novel coronavirus severe acute respiratory syndrome (SARS-CoV-2) has progressed
rapidly from an outbreak to a global pandemic, with new variants rapidly emerging …

The ongoing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic is
having a disastrous impact on global health. Recently, several studies examined the …

The novel coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2), which is at the origin of the current pandemic, predominantly manifests with severe …

Introduction Global emergence of coronavirus disease-19 (COVID-19) has clearly shown
variable severity, mortality, and frequency between and within populations worldwide. These …

Vitamin D is proposed to have a potential role in the pathogenicity, clinical presentation,
prognosis, complications, and treatment of several diseases. In addition to its well-known …

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 …

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 …

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 …

Introduction Vitamin D status is related to risks of influenza and respiratory tract infections.
Vitamin D has direct antiviral effects primarily against enveloped viruses, and coronavirus is …