Background This study applies an umbrella review approach to summarise the global
evidence on the risk of severe COVID-19 outcomes in patients with pre-existing health …

Background Previous studies suggested that the prevalence of chronic respiratory disease
in patients hospitalised with COVID-19 was lower than its prevalence in the general …

Objective To describe characteristics of a series of patients reporting prolonged symptoms
after an infection with coronavirus disease 2019 (COVID-19). Patients and Methods This …

Sexual dimorphism has been reported in various human diseases including autoimmune
diseases, neurological diseases, pulmonary arterial hypertension, and some types of …

Introduction Since the early SARS-CoV-2 pandemic, cancer patients have been assumed to
be at higher risk for severe COVID-19. Here, we present an analysis of cancer patients from …

Background In the post-pandemic era, a wide range of COVID-19 sequelae is of growing
health concern. However, the risks of digestive diseases in long COVID have not been …

Post-COVID-19 syndrome (PCS) is characterized by persisting sequelae after infection with
severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). PCS can affect patients …

Simple Summary Patients with cancer are considered a vulnerable population and might
have an increased risk for severe outcomes of coronavirus disease 2019 (COVID-19). We …

Background Cellular immunodeficiency and comorbidities are common in COVID-19
patients. Aim The purpose of this study was to investigate comorbidities impacting on the …

Background: Cancer patients are considered a highly fragile group in the current
coronavirus disease 2019 (COVID-19) pandemic. Material & methods: In this study, patients …