Open this photo in gallery This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2, yellow, emerging from the surface of cells, pink, cultured in the lab....
Also known as 2019-nCoV, the virus causes COVID-19....
Public Safety Canada says it has approved a request for help from the Northwest Territories as the territory deals with a surge in COVID-19 cases....
综合
环球邮报-加拿大
2021-08-22 00:00:00.0