UK extended its nationwide lockdown for at least another 3 weeks on Thursday, as stand-in leader Dominic Raab ordered Britons to stay at home to prevent the spread of a coronavirus outbreak which has already claimed over 138,000 lives globally.

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An ambulance passes a banner thanking the NHS in Kensington, as the spread of the coronavirus disease (COVID-19) continues, London, Britain, April 16, 2020. REUTERS/Hannah McKay

“Relaxing any of the measures currently in place would risk damage to both public health and the economy,” he told reporters.

Raab is deputising while Prime Minister Boris Johnson recuperates from COVID-19 complications that nearly cost him his life.

The United Kingdom has the fifth-highest official death toll from COVID-19 in the world, after the United States, Italy, Spain and France, though British figures only cover hospital fatalities and the real number is probably much higher.

The announcement, which had been widely expected, means Britons must stay at home unless they are shopping for basic necessities, or meeting medical needs. Citizens are allowed to exercise in public once a day, and can travel to work if they are unable to work from home.

The measures were announced on March 23 for an initial three-week period.

The arrangements, which mirror similar restriction in many other countries, are unprecedented in peacetime Britain and have effectively shuttered vast swathes of the world’s fifth largest economy.

Earlier, Health minister Matt Hancock warned the virus would “run rampant” if the restrictions were lifted too soon.

A YouGov poll conducted before Thursday’s announcement showed 91% of Britons supported a three week extension to the lockdown.

SUN WILL SHINE AGAIN

The United Kingdom’s death toll from COVID-19 in hospitals rose 861 to 13,729, as of 1600 GMT on April 15. Broader statistics that include deaths in care homes and in the community suggest the total toll is much larger.

Amid all the gloom, however, there was some hope.

Tom Moore, a 99-year-old British war veteran, on Thursday completed 100 laps of his garden, raising more than 12 million pounds ($15 million) for the health service.

“For all those people who are finding it difficult at the moment: the sun will shine on you again and the clouds will go away,” said Moore.

Restrictions across the globe have effectively closed down much of the world economy, and the United Kingdom is heading towards its deepest depression in three centuries. [nL5N2C45D3]

As leaders around the world begin to contemplate ways to exit the shutdown, epidemiologists have cautioned that a second wave of the outbreak could endanger the weak and elderly.

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Neil Ferguson, a professor of mathematical biology at Imperial College London who advises the government, said Britain would probably have to maintain some level of social distancing until a vaccine for the novel coronavirus is available.

“If we relax measures too much then we will see a resurgence in transmission,” he told BBC radio. “If we want to reopen schools, let people get back to work, then we need to keep the transmission down in another manner.”

GlaxoSmithKline Chief Executive Officer Emma Walmsley said on Wednesday that a vaccine was unlikely to be ready before the second half of 2021.

Additional reporting by Kate Holton, Paul Sandle and William Schomberg; writing by Guy Faulconbridge and William James; Editing by Stephen Addison, Gareth Jones and Andrew Heavens