As the threat of the Omicron wave has receded in England, the government has been quick to move the conversation on to “living with Covid”.
It was inevitable that this would mean the eventual lifting of legal restrictions, including the need to self-isolate. But even given the optimistic tone in recent weeks, Boris Johnson’s announcement on Wednesday came sooner than many expected.
While he signalled the scrapping of restrictions in England by 24 February – a month earlier than had originally been planned – he provided no detail.
It is unclear whether any specific scientific advice was provided on the impact of the move – none has been published – and some of the latest evidence published by the government’s Sage advisers gives an idea of potential risks.
An assessment in mid-January concluded that lifting of plan B measures could result in a return to epidemic growth, “particularly if precautionary behaviour, including testing, decreases as a result of reduced perception of risk”. Since then, case numbers have remained high and on Wednesday figures from the Office for National Statistics (ONS) showed that in England infection levels rose to one in 19 people in the first week of February.
But those figures are not as frightening as they once were.
Vaccines and immunity from infection mean that a large surge of cases no longer translates to tens of thousands of deaths. Nevertheless, the Sage analysis points out that another increase could result in “a sustained period of high levels of hospitalisations [that] would have detrimental consequences for the NHS”, at a time when waiting lists are at a record high.
As we move out of the crisis phase of the pandemic, it is perhaps also time to recalibrate what we expect from public health policy, beyond simply avoiding large numbers of deaths in the immediate term. Restrictions have to be balanced against the real downsides of self-isolating, but policies should also be evidence-based, coherent and consider the impact on those in vulnerable groups.
The latest announcement has left a sense of confusion about how the public will be expected to live out the changes to rules in two weeks’ time.
Following the jubilant tone of the announcement regarding people no longer needing to self-isolate, Downing Street later clarified that “in the same way that someone with flu, we wouldn’t recommend they go to work, we would never recommend anyone goes to work when they have an infectious disease”.
A substantial proportion of Covid infections are asymptomatic, or mild, though. So as England moves to a new phase, so new questions will have to be faced. Most employers would not expect – or tolerate – people staying off work when suffering from mild cold symptoms. Will they feel the same way about Covid?
Will people just need to stay at home as long as they are ill – as with flu? Or will there be a suggested isolation period? And how will the rules apply to NHS staff, who until last week faced being sacked unless they were fully vaccinated? The details are, so far, unclear.
There is also continued concern about how the latest policy will affect those in the clinically vulnerable group, for whom Covid remains a more serious threat because their immune systems do not respond as effectively to vaccines.
Campaign groups and charities representing those with blood cancer, kidney disease and other immunocompromised people say that while the government has celebrated being able to return people’s freedoms, it has failed to set out plans for how vulnerable groups will be able to return to a normal life, or to ensure that all of these people are able to access fourth vaccine doses and antiviral drugs.
The emergence of future variants also remains a possibility, and Sage scientists have repeatedly stressed the need for vigilance. While requirements for individuals to test and isolate may be relaxed, it will be crucial for national surveillance to continue to ensure that there is time to react in the case of new variants.