A novel disease, of unknown origin, causing a deadly pneumonia of human patients was
reported in December 2019 in Wuhan, Hubei province of China. Later called coronavirus …

The ongoing outbreak of the coronavirus disease 2019 (COVID-19) as named by the World
Health Organization has millions of confirmed cases around the world and has claimed …

A cluster of pneumonia (COVID‐19) cases have been found in Wuhan China in late
December, 2019, and subsequently, a novel coronavirus with a positive stranded RNA was …

In December 2019, a cluster of viral pneumonia cases of unknown origin emerged in
Wuhan, Hubei Province of China. This emergency has attracted global concern, and the …

Starting around December 2019, an epidemic of pneumonia, which was named COVID‐19
by the World Health Organization, broke out in Wuhan, China, and is spreading throughout …

The novel SARS-CoV-2 corona virus that emerged in the city of Wuhan, China, in 2019 and
has since caused a large scale COVID-19 epidemic and spread to more than 190 other …

Objective: To understand the genomic characteristics of SARS-CoV-2 from 40 imported
cases with confirmed COVID-19 in Sichuan during January and March 2022. Methods: Total …

The covid-19 virus is a severe and contagious viral infection that appeared in Wuhan, China
in late December 2019 and spread rapidly around the world. Despite numerous studies on …

The first human case of COVID-19, caused by the novel coronavirus, was reported by health
officials in the city of Wuhan, China, in December of 2019. The virus was identified as a …

The target gene sequences of the novel coronaviruses obtained by sequencing were
compared with the reference sequences to analyze the genetic variation of the two cases of …