Many Governments are taking tough decisions: they have decided that their countries should slow down their economies and go into lockdown in order to reduce opportunities for the COVID-19 virus to be transmitted between people. The decisions made on when and how to emerge from lockdown are even more difficult: they are also delicate.
Deciding to impose lockdown is a reaction to the mounting threat to people’s health caused by rapidly escalating outbreaks. Reducing opportunities for the virus to be transmitted through enforcing physical distancing is essential not least because of the inevitability that hospital services will be overwhelmed unless decisive action is taken.
Governments are finding that the numbers of people with whom newly infected individuals have been in contact after lockdowns were imposed are many fewer than the numbers of contacts of infected people before lockdowns were imposed. Over time – two to three weeks after the imposition of lockdown – the numbers of infected people, and the fatalities, are starting to fall.
The sequence for easing a lockdown will vary from place to place. Decision makers will be considering multiple factors when deciding how best to do this.
This is certainly happening in Western Europe and in some parts of the US as well. Italy’s Health Minister Roberto Speranza outlined that the next phase of the national response includes more testing and reinforced local health systems with a view to creating the conditions needed to live with the virus. This will make it possible for the lockdown to be eased, gradually.
The routes out of lockdown will be messy. Quality information is at a premium. Decisions will be based on data about the spread of the virus disaggregated by locality. Numbers of people becoming infected will need to be factored into decisions. The goal is to understand the extent of transmission and whether the rate of increase in people infected is starting to reduce.
The sequence for easing a lockdown will vary from place to place. Decision-makers will be considering multiple factors when deciding how best to do this. We try to imagine the kinds of questions they will be asking and here we explore the questions and indicate some of the factors they might consider.
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