Covid-19 test a week after UK arrival 'could halve quarantine time'

Scientific modelling shows different approaches to testing could catch up to 94% of cases

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Testing travellers a week after their arrival in the UK could catch 94% of coronavirus cases and halve quarantine times, scientific modelling has suggested, as ministers consider proposals to reduce the 14-day self-isolation for those coming from high-risk countries.

Boris Johnson said on Tuesday that Europe was beginning to experience a second wave of Covid-19 infections, increasing the pressure to find measures to prevent the spread of cases to the UK.