For Europe, one year into this pandemic, with a new variant spreading and vaccine delivery delayed, things seem to have just gone from bad to worse.

This article provides an explanation of why the European Union is so afraid of the new strain B.1.1.7, which originated somewhere in Kent, England, and now has become the dominant strain in the United Kingdom.

From the very beginning of the pandemic, I explained in my interviews and columns that epidemiologists are most afraid of unpredictable mutations of the virus during a pandemic. …

Igor Rudan

Director of the Centre for Global Health and the WHO Collaborating Centre at the University of Edinburgh, UK; Editor-in-Chief, Journal of Global Health

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