Importance Several studies were conducted to estimate the average incubation period of
COVID-19; however, the incubation period of COVID-19 caused by different SARS-CoV-2 …

Introduction: Although severe acute respiratory syndrome coronavirus-2 infection is causing
mortality in considerable proportion of coronavirus disease-2019 (COVID-19) patients …

Objective We aimed to describe the associations of age and sex with the risk of COVID-19 in
different severity stages ranging from infection to death. Design Systematic review and meta …

Fatigue is a common symptom in those presenting with symptomatic COVID-19 infection.
However, it is unknown if COVID-19 results in persistent fatigue in those recovered from …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a novel coronavirus, is
responsible for the outbreak of coronavirus disease 19 (COVID-19) and was first identified in …

Background and purpose The objective of our systematic review is to identify prognostic
factors that may be used in decision-making related to the care of patients infected with …

Abstract Background An epidemic of Coronavirus Disease 2019 (COVID-19) began in
December 2019 and triggered a Public Health Emergency of International Concern (PHEIC) …

Background & Aims Recent data on the coronavirus disease 2019 (COVID-19) outbreak
caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has begun …

OBJECTIVE Patients with obesity are at increased risk of exacerbations from viral respiratory
infections. However, the association of obesity with the severity of coronavirus disease 2019 …

Background: Coronavirus disease-2019 (COVID-19) is an emerging public health problem
threatening the life of over 2.4 million people globally. The present study sought to …