Une autre variante trouvée en Grande-Bretagne: SRAS-CoV-2: the transmission is stronger and the variation is deeper. Xinhua News Agency, London, décembre 23 (Reporter Zhang Jiawei Jin Jing) British Health Minister Matthew Hancock said on the 23 rd that the prevention and control level of COVID-19 epidemic in more areas in the east and southeast of England will be raised to the …