Objectives To describe the clinical characteristics, laboratory results, imaging findings, and
in-hospital outcomes of COVID-19 patients admitted to Brazilian hospitals. Methods A cohort …

The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is an emergent
infectious pathogen causing an acute respiratory disease called corona virus disease 2019 …

Background A growing number of long COVID cases after infection have been reported. By
definition, long COVID is the condition whereby affected individuals do not recover for …

Introduction The vaccine distribution for the COVID-19 is a multicriteria decision-making
(MCDM) problem based on three issues, namely, identification of different distribution …

The novel severe acute respiratory syndrome coronavirus (COVID-19) has hit older adults
harder due to a combination of age-related immunological and metabolic alterations. The …

Objectives The majority of available scores to assess mortality risk of coronavirus disease
2019 (COVID-19) patients in the emergency department have high risk of bias. Therefore …

Background A modified scoring system based on the RDW, AGE, SOFA, and APACHE II
score (RAAS score) was composed to investigated the short-, medium-, and long-term high …

Critical COVID-19 is characterized by lack of early type I interferon-mediated host defense
and subsequent hyper-inflammation in the lungs. Aberrant activation of macrophages and …

Objective and design Perturbations of peripheral T cell homeostasis and dysregulation of
the immune response to SARS-CoV-2, especially in severely ill patients, were observed …

Acute kidney injury (AKI) is frequently associated with COVID-19 and it is considered an
indicator of disease severity. This study aimed to develop a prognostic score for predicting in …