Abstract Coronavirus disease 2019 (COVID-19) is caused by the severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2). Despite pulmonary impairments being the most …

Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) belongs to the group of
Betacoronaviruses. The SARS-CoV-2 is closely related to SARS-CoV-1 and probably …

The aim of this study is to provide a more accurate representation of COVID‐19's case
fatality rate (CFR) by performing meta‐analyses by continents and income, and by …

Since the reporting of the first cases of coronavirus in China and the publication of the first
sequence of SARS-CoV-2 in December 2019, the virus has undergone numerous …

Background: Although reasonable to assume, it is not yet clear whether malnourished
countries are at higher risk for severe or fatal coronavirus disease 2019 (COVID-19). This …

BACKGROUND Demographers have emphasized the importance of age in explaining the
spread of COVID-19 and its impact on mortality. However, the relationship between COVID …

As coronavirus variants are constantly occurring, we tried to understand more about the
omicron and delta variants that have hit the world. We provided dynamic information on the …

Background: Indonesia has a high number of COVID-19 cases and mortalities relative to not
only among the Asia Pacific region but the world. Children were thought to be less affected …

ABSTRACT INTRODUCTION: since the first case of COVID-19 was confirmed in February
2020, Brazil has reported more than 20 million cases and more than 600,000 deaths on …

Abstract Background Estimates of SARS-CoV-2 infection fatality rates (IFRs) in developing
countries remain poorly characterized. Mexico has one of the highest reported COVID-19 …