Abstract Background Recently, Coronavirus Disease 2019 (COVID-19) outbreak started in
Wuhan, China. Although the clinical features of COVID-19 have been reported previously …

A systematic review and meta-analysis was conducted in an attempt to systematically collect
and evaluate the associations of epidemiological, comorbidity factors with the severity and …

Since December 2019, the pneumonia cases infected with 2019 novel coronavirus have
appeared, posing a critical threat to global health. In this study, we performed a meta …

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

Abstract Coronavirus disease 2019 (COVID‐19) has become a pandemic, but its reported
characteristics and outcomes vary greatly amongst studies. We determined pooled …

Our understanding of the Coronavirus disease 2019 (COVID-19) continues to evolve and
there are many unknowns about its epidemiology. This study aims to synthesise case fatality …

Objective We aimed to systematically identify the possible risk factors responsible for severe
cases. Methods We searched PubMed, Embase, Web of science and Cochrane Library for …

Objective Our study aims to present a summary of the clinicopathological characteristics of
patients affected by the coronavirus disease 2019 (COVID-19) that can be used as a …

Background Since being first reported in Wuhan, China, in December 8, 2019, the outbreak
of the novel coronavirus, now known as COVID-19, has spread globally. Some case studies …

Abstract Background Coronavirus disease 2019 (COVID-19) is associated with a high
mortality rate, especially in patients with severe illness. We conducted a systematic review …