Background: Several studies suggest an association between serum 25-hydroxyvitamin D
(25OHD) and the outcomes of Severe Acute Respiratory Syndrome Corona-Virus-2 (SARS …

Early epidemic reports have linked low average 25 (OH) vitamin D levels with increased
COVID-19 mortality. However, there has been limited updated research on 25 (OH) vitamin …

Abstract Background Post COVID-19 syndrome (PCS) has emerged as a major roadblock in
the recovery of patients infected with SARS-CoV-2. Amongst many symptoms like myalgia …

Vitamin D has many protective properties and potential role against acute lung injury. Low
serum vitamin D is associated with high risk of pneumonia and development of acute …

While the COVID-19 pandemic is still in progress, being under the fifth COVID-19 wave in
Madrid, over more than one year, Spain experienced a four wave pattern. The transmission …

Abstract Coronavirus disease 2019 (COVID-19), which is caused by an infection of severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is rapidly becoming a worldwide …

Background & aims COVID-19 has emerged as a global pandemic affecting millions of
people. Vitamin D deficiency is one of the risk factors for increased susceptibility to COVID …

The elderly and those with underlying chronic diseases (ie, comorbidities) such as
pulmonary, cardiovascular, metabolic, and renal diseases, increase their susceptibility to …

Background and aims Proper nutrition to optimise immune function is mandatory as at
present there is no specific medicine to cure COVID-19. Our study aimed to investigate the …

Urgent identification of COVID-19 in infected patients is highly important nowadays. Förster
or fluorescence resonance energy transfer (FRET) is a powerful and sensitive method for …