IMAGENS DE OVOODOCORVO
UK will have Europe's worst coronavirus death
toll, says study
IHME analysis is disputed by scientists whose
modelling is relied on by UK government
Sarah
Boseley Health editor
Tue 7 Apr
2020 18.32 BSTLast modified on Wed 8 Apr 2020 00.27 BST
World-leading
disease data analysts have projected that the UK will become the country worst
hit by the coronavirus pandemic in Europe, accounting for more than 40% of
total deaths across the continent.
The
Institute for Health Metrics and Evaluation (IHME) in Seattle predicts 66,000
UK deaths from Covid-19 by August, with a peak of nearly 3,000 a day, based on
a steep climb in daily deaths early in the outbreak.
The
analysts also claim discussions over “herd immunity” led to a delay in the UK
introducing physical distancing measures, which were brought in from 23 March
in England when the coronavirus daily death toll was 54. Portugal, by
comparison, had just one confirmed death when distancing measures were imposed.
The IHME
modelling forecasts that by 4 August the UK will see a total of 66,314 deaths –
an average taken from a large estimate range of between 14,572 and 219,211
deaths, indicating the uncertainties around it.
The newly
released data is disputed by scientists whose modelling of the likely shape of
the UK epidemic is relied on by the government. Prof Neil Ferguson, of Imperial
College London, said the IHME figures on “healthcare demand” – including
hospital bed use and deaths – were twice as high as they should be.
The IHME,
which is responsible for the ongoing Global Burden of Disease study, calculated
the likely need for hospital admissions and intensive care beds and projected
deaths in European countries hit by Covid-19.
Looking at
the measures taken by the UK to curb the spread of the disease, the institute
says the peak is expected in 10 days’ time, on 17 April. At that point the
country will need more than 102,000 hospital beds, the IHME says. There are
nearly 18,000 available, meaning a shortfall of 85,000.
The same
grim picture applies to intensive care beds. At the peak, 24,500 intensive care
beds will be needed and 799 are available, the analysts predict. There will be
a need for nearly 21,000 ventilators, they say. At the peak the UK will see
2,932 deaths a day, the IHME forecasts.
The death
toll in other European countries that are now struggling with Covid-19 will be
lower, they say. Spain is projected to have 19,209 deaths by the same date,
Italy 20,300 and France 15,058. All three countries have imposed tougher
lockdown measures than the UK.
The IHME
bases its forecasts in large part on the trajectory of deaths rather than case
numbers and the speed with which distancing measures were put in place.
The UK will
be severely short of beds, it finds. Germany, by contrast, is predicted to have
enough hospital beds, including ICU beds, needed for its peak. The IHME
predicts Germany will have 8,802 deaths in total by 4 August.
France will
have enough general beds but will be about 4,000 short of ICU beds at the peak,
says the forecast. There are projected to be just over 15,000 deaths there.
Both Italy and Spain are past their peaks, says the IHME.
The IHME,
based at the University of Washington in Seattle, published its forecast for
the US on Sunday, revising down the projected number of Covid-19 deaths there
from 93,500 to 81,800. These figures were relied on in part for the US
government’s own, higher predictions of the coronavirus death toll.
In March,
modellers relied on by the UK government, led by the team at Imperial College
London, said deaths could reach 260,000 in the UK with no restrictions on
movement, but they hoped to get deaths down to 20,000 through the lockdown
strategy.
Ferguson
said he did not think the predictions could be relied on. “This model does not
match the current UK situation,” he said, adding that the numbers used by the
IHME were at least twice as high as they should be for current bed usage and
deaths in the NHS. “Basically, their healthcare demand model is wrong, at least
for the UK,” he said.
The IHME
said its model was designed to be updated from day to day as the pandemic goes
on. For a country such as the UK, which is quite early on in its outbreak, the
uncertainty was higher and the headline numbers might change over the next few
days as more data is collected.
The high
predicted numbers of UK deaths were driven by three factors, the IHME said:
What had
happened in other countries that are ahead in their epidemics, such as Italy
and Spain.
What had
happened so far in the UK.
When physical
distancing measures were put in place.
In the
early stages of the UK outbreak, deaths climbed steeply, which the IHME says is
a major driver of predicted deaths.
The
flirtation in government with the idea of “herd immunity” as a way out of the
epidemic meant there was a delay in implementing physical distancing until 23
March, when there were already 54 daily deaths.
“We are
expecting a foreboding few weeks for people in many parts of Europe,” said the
IHME director, Dr Christopher Murray. “It seems likely the number of deaths
will exceed our projections for the United States.
“It is
unequivocally evident that social distancing can, when well-implemented and
maintained, control the epidemic, leading to declining death rates.
“Those
nations hit hard early on implemented social distancing orders and may have the
worst behind them as they are seeing important progress in reducing their death
rates.
“Each
nation’s trajectory will change – and dramatically for the worse – if people
ease up on social distancing or relax other precautions.”
Murray
cautioned that easing these precautions too soon during the first wave of the
pandemic could lead to new rounds of infections, hospitalisations and deaths.
He defined the end of this “wave” as a ratio of 0.3 deaths per 1 million
people.
“To
decrease the risk of a second wave in places where the first wave is controlled
by robust social distancing, governments would need to consider mass testing,
contact tracing and quarantines for those infected until a vaccination is
available, mass-produced and distributed widely,” Murray said.
A
Department of Health and Social Care spokesperson said: “Our response to
coronavirus – including decisions on which measures we introduce and when – is
based on the latest scientific advice, modelling and evidence, and we are
working round the clock with world-renowned clinicians, public health experts and
scientists to keep this country safe.
“In England
alone, the NHS successfully has freed up more than 33,000 beds – the equivalent
of 50 new hospitals – and we are increasing the number of ventilators and
opening more Nightingale hospitals, all of which will save even more lives in
the coming weeks.”
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