Aims To estimate the association of smoking status with rates of (i) infection,(ii)
hospitalization,(iii) disease severity and (iv) mortality from SARS‐CoV‐2/COVID‐19 disease …

Background: Coronavirus disease (COVID-19) is a respiratory and systemic disorder caused
by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) or novel Coronavirus …

Objective: Vitamin D deficiency has been associated with an increased risk of COVID-19
severity. This multi-center randomized clinical trial aims to determine the effects of 5000 IU …

To assess the evidence on SARS-CoV2 infection and Covid-19 in relation to deficiency and
supplementation of vitamin D, we conducted a systematic review up to April 2021. We …

METHODS Electronic databases, including PubMed, EMBASE, Cochrane Library, Science
Direct, Google Scholar, were systematically searched from the initiation of the database until …

Public health endorsements during the present COVID-19 pandemic has led the
governments of largely affected countries to imply policies that restrict social mobility to slow …

Background COVID-19 pandemic is a major strain on health and economic systems, with
rapidly increasing demand for in patients' facilities. Disease diagnosis and estimating …

Purpose As the world continues to cautiously navigate its way through the coronavirus
disease 2019 (COVID-19) pandemic, several breakthroughs in therapies and vaccines are …

Background Diabetes is a cardiometabolic comorbidity that may predispose COVID‐19
patients to worse clinical outcomes. This study sought to determine the prevalence of …

Summary Background Coronavirus disease-2019 (COVID-19) is a global pandemic. Studies
reported dyslipidemia in patients with COVID-19. Herein, we conducted a systematic review …