A coronavirus variant that originated in Spanish farm workers has spread rapidly through much of Europe since the summer, and now accounts for the majority of new Covid-19 cases in several countries — and more than 80 per cent in the UK.
An international team of scientists that has been tracking the virus through its genetic mutations has described the extraordinary spread of the variant, called 20A.EU1, in a research paper to be published on Thursday.
Their work suggests that people returning from holiday in Spain played a key role in transmitting the virus across Europe, raising questions about whether the second wave that is sweeping the continent could have been reduced by improved screening at airports and other transport hubs.
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