Novel coronavirus spreads quickly across globe since late 2019: study
A medical worker shows a testing swab at a drive-thru COVID-19 testing center in Hamilton, Ontario, Canada, on April 23, 2020. (Photo by Zou Zheng/Xinhua)
By screening the genomes
A medical worker shows a testing swab at a drive-thru COVID-19 testing center in Hamilton, Ontario, Canada, on April 23, 2020. (Photo by Zou Zheng/Xinhua)
By screening the genomes