During a severe infection such as coronavirus disease 2019 (COVID-19), the level of almost
all analytes can change, presenting a correlation with disease severity and survival; …

Background The 2019 coronavirus disease (COVID-19) caused by the SARS-CoV-2 virus
has an impact on all aspects of patient care. Serum ferritin generally represents a biomarker …

Abstract Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) infection has resulted in a global pandemic with …

There is a marked variation in mortality risk associated with COVID-19 infection in the
general population. Low socioeconomic status and other social determinants have been …

Objectives The severity of Coronavirus Disease 2019 (COVID-19) is largely determined by
the immune response. First studies indicate altered lymphocyte counts and function …

Increased levels of circulating complement activation products have been reported in COVID-
19 patients, but only limited information is available on complement involvement at the …

Background In the SARS-CoV-2/COVID-19 pandemic, we need to understand the impact of
immunomodulatory medications on COVID-19 symptom severity in patients with …

Background The lack of knowledge regarding the pathogenesis and host immune response
during SARS-CoV-2 infection has limited the development of effective treatments. Thus, we …

Early reports indicate an association between the severity of the COVID-19 infection and the
widespread 25-hydroxy vitamin D deficiency known to exist in populations around the world …

The severity of COVID-19 is largely determined by the inflammatory response, a “Cytokine
storm,” that involves both pro-and anti-inflammatory cytokines. In the current study we …