The Prime Minister was clear last night in his televised address that COVID-19 was "the biggest threat this country has faced for decades".
Boris Johnson's message to the public that they should stay at home, backed up by the draconian threat of police action for those who ignored the instruction, was accompanied with a suggestion that "we can turn the tide within the next 12 weeks".
It was also tempered by a promise to review the restrictions after 3 weeks.
This afternoon, Health Secretary Matt Hancock told the Commons: "These measures are not advice. They are rules, and will be enforced, including by the police, with fines starting at £30 pounds, up to unlimited fines for non-compliance."
Restrictions Will Be Reviewed After 3 Weeks
Although Mr Johnson hinted that he might relax restrictions if the evidence showed this was possible, Michael Gove, the Cabinet Office Minister did not rule out further tightening if the measures did not slow the virus spread.
"In 3 weeks' time we will be able to say whether or not the path that we followed needs any further intensification," he told Sky News this morning.
Emergency legislation to give the Government more powers to restrict movement and detain people who are a danger to public health is being fast-tracked through Parliament. The bill passed its Commons stages last night and is being considered by the Lords today.
In the initial stages of the pandemic, the Government had pursued a policy of containment, identifying people with the virus, isolating them, tracking their contacts and asking them to self-isolate. That was followed by policies to delay and flatten the peak to give the NHS more breathing space.
Experts Backed Suppression Over Mitigation
The measures Mr Johnson announced on Monday night followed research by Imperial College London (ICL) which gave a bleak assessment of likely trends. The ICL modelling found that pursuing a policy of 'mitigation' could result in a mortality rate of around 250,000 deaths and that 'suppression' was "the only viable strategy at the current time".
However, it came with a warning that "no public health intervention with such disruptive effects on society has been previously attempted for such a long duration of time", and that how people would respond "remains unclear".
That analysis was followed on Monday by non-peer reviewed research, led by University College London and the University of Cambridge, which concluded that 'mitigation' could lead to between 35,000 and 70,000 excess deaths within a year, and that stronger suppression measures were needed to combat the spread of COVID-19.
Dr Rupert Beale from the Francis Crick Institute, welcomed the Prime Minister's announcement: "Doctors and scientists are working flat out to deliver better testing and better treatments, but this will take time," he told the Science Media Centre. "Before then we will run out of capacity in intensive care units if we do not obey these instructions."