Background: Given the worldwide spread of the 2019 Novel Coronavirus (COVID-19), there
is an urgent need to identify risk and protective factors and expose areas of insufficient …

Introduction Identifying SARS-CoV-2 infection risk factors allows targeted public health and
social measures (PHSM). As new, more transmissible variants of concern (VoC) emerge …

The clinical course and outcome of COVID-19 are highly variable, ranging from
asymptomatic infections to severe disease and death. Understanding the risk factors of …

Abstract Background Severe Acute Respiratory Syndrome coronavirus-2 (SARS-CoV-2) has
challenged public health agencies globally. In order to effectively target government …

Objectives Quantifying the combined impact of morbidity and mortality is a key enabler to
assessing the impact of COVID-19 across countries and within countries relative to other …

As the novel coronavirus (SARS-CoV-2) continues to spread rapidly across the globe, we
aimed to identify and summarize the existing evidence on epidemiological characteristics of …

Background The COVID-19 respiratory illness caused by the SARS-CoV-2 has been a major
cause of morbidity and mortality worldwide since the first reported case in Wuhan, China. A …

Aim COVID-19 clinical presentation is heterogeneous, ranging from asymptomatic to severe
cases. While there are a number of early publications relating to risk factors for COVID-19 …

A newly emerged respiratory viral disease called severe acute respiratory syndrome
coronavirus-2 (SARS-CoV-2) is also known as pandemic coronavirus disease (COVID-19) …

Materials and Methods The literature search was conducted on PubMed. Search terms
included “COVID-19”,“severe acute respiratory syndrome coronavirus 2”,“coronavirus …