Boris Johnson reveals No10 will keep gold-standard Covid surveillance project

The UK will keep its gold-standard Covid surveillance project, the Prime Minister confirmed today as he dismissed fears that Britain’s crucial radar was going to be turned off. 

Unveiling his ‘Living with Covid’ strategy in the Commons this afternoon, Boris Johnson said the ‘world-leading’ Office for National Statistics survey will continue monitoring infection levels.

Ministers have heavily relied on the random testing scheme throughout the course of the pandemic, with the scheme used to track infections and antibody levels. And some positive samples collected by the project — which tests 100,000 people every fortnight — are sent onto labs to check for variants. 

Mr Johnson told MPs the survey will continue tracking the virus ‘in granular detail’ and both its regional and age breakdowns will help spot surges ‘as and where they happen’.

The PM hinted that other studies would continue, saying we will ‘main our resilience to manage and respond to these risks’.  However, it is not clear exactly which other surveillance projects will be kept, or whether or not they will be watered down.    

Last week scientists warned that it would be ‘idiotic’ to axe the Office for National Statistics’ (ONS) weekly infection survey, following claims that it would be scrapped. 

Former SAGE scientist Jeremy Farrar claimed it was ‘crucial’ the ONS infection survey was kept, adding that even a reduction in its service would be ‘very unwise’.  

Unveiling his ‘Living with Covid’ strategy in the Commons this afternoon, Boris Johnson (pictured) said the ‘world-leading’ Office for National Statistics survey will continue monitoring infection levels

One of the key features of the Office for National Statistics weekly infection survey has been tracking how likely different age groups were to test positive for Covid over the course of the pandemic

One of the key features of the Office for National Statistics weekly infection survey has been tracking how likely different age groups were to test positive for Covid over the course of the pandemic

The SIREN study aims to track how likely NHS workers were to be infected/re-infected with Covid over the course of the pandemic, this graph from the latest UK Health Security Agency report on the study shows the impact of the Omicron wave on health service staff testing positive

The SIREN study aims to track how likely NHS workers were to be infected/re-infected with Covid over the course of the pandemic, this graph from the latest UK Health Security Agency report on the study shows the impact of the Omicron wave on health service staff testing positive 

Submitted to the UK Government advisory body SAGE the CoMix study tracks a number of behaviours by members of the public during the Covid pandemic such as number of contacts as this chart demonstrates, in addition behaviours such as adherence to mask wearing

Submitted to the UK Government advisory body SAGE the CoMix study tracks a number of behaviours by members of the public during the Covid pandemic such as number of contacts as this chart demonstrates, in addition behaviours such as adherence to mask wearing 

The map shows confirmed (red) and possible (yellow) detections of Omicron in wastewater samples collected across the country, as well as where it was not spotted (grey) from the  Environmental Monitoring for Health Protection wastewater monitoring of SARS-CoV-2 in England. Pictured: map left shows Omicron cases in the week to November 28, while map right shows where the variant was detected in the week to December 5

The map shows confirmed (red) and possible (yellow) detections of Omicron in wastewater samples collected across the country, as well as where it was not spotted (grey) from the  Environmental Monitoring for Health Protection wastewater monitoring of SARS-CoV-2 in England. Pictured: map left shows Omicron cases in the week to November 28, while map right shows where the variant was detected in the week to December 5

What are the current Covid surveillance schemes in the UK and how do they work? 

ONS Infection Survey

Run by the UK’s statistics body this weekly survey is considered the the gold-standard of the nation’s Covid surveillance system and is based on random swabs from 100,000 Britons.

Random sampling, rather than relying on positive cases to come forward, allows scientists to track cases across the country and among different age groups.

The antibody portion of the survey also enables us to estimate how many people are protected against Covid.

SIREN 

This study is run by the UK Health Security Agency (UKHSA) and monitors 10,000 NHS workers in England in an attempt to track Covid reinfections through regular swab test and blood tests for antibodies. 

Vivaldi

Run by University College London with care home chain Four Seasons healthcare, and the Department of Health, this study aims to track Covid infection in care homes.

Care homes are considered particularly vulnerable to Covid infection due to the high concentration of a people who are at risk of becoming severely ill if they catch the virus. 

It involves testing around 6500 staff and 5000 residents across 100 care homes in England to estimate the proportion of those who had been infected with Covid and if they had antibodies.

The study aimed to find out how long antibody protection lasts and if it helps ward off reinfection as well as tracking Covid outbreaks across England’s care sector. 

It is due to end in April 2022.  

REACT

Short for ‘Real-time Assessment of Community Transmission’ the REACT studies is conducted by Imperial College London.

REACT involves a random sample of 150,000 people in England who are sent a nose and throat swab kit each month.

This provides a snapshot how prevalent Covid is in the community by estimating how many people are currently infected and to calculate the R number, a measure of how quickly the virus is spreading. 

CoMix

A report prepared by the London School of Hygiene & Tropical Medicine for the Government scientific advisory group for the pandemic, SAGE, on how people behaved during the pandemic.

This included aspects such as the number of social contacts in a given period, if people wore of facemasks, sand if people were working from home or not.

Data is collected very two weeks through a survey of about 1,350 British households.

Environmental Monitoring for Health Protection wastewater monitoring of SARS-CoV-2 in England

Run by UKHSA this study involved analysing the wastewater in England for traces of Covid.

People infected with coronavirus shed it through a variety of activities, including when blowing their nose and going to the toilet.  

Wastewater from across England was analysed throughout the pandemic for fragments of the Covid virus in an attempt to track outbreaks. 

The UKHSA and Department for Environment, Food and Rural Affairs test untreated sewage from 275 sites across England, covering 40million people, three times a week.

Samples are analysed to identify exactly where the virus is circulating in the country. It can also help officials keep tabs on the spread of variants.

Unlike Covid tests, monitoring wastewater doesn’t rely on people coming forward for a swab to pick up trends in cases.

COG-UK

A consortium of genomics laboratories in the UK which sequence samples of Covid taken from the public.

This data enables scientists to track if particular variants of the Covid virus, such as Omicron and Delta are in the UK and how they are spreading, as well as if they are evolving mutations which could impact severity of disease to vaccine effectiveness. 

It is partly funded by the UK Government.

The PM said: ‘SAGE advises there is considerable uncertainty about the future path of pandemic and there may, of course, be significant resurgences. 

‘They are certain there will be new variants and it is very possible they will be worse than Omicron.

‘So we will maintain our resilience to manage and respond to these risks, including our world-leading ONS survey which will allow us to continue tracking the virus in granular detail, with regional and age breakdowns helping us to spot surges as and where they happen.’

Labour leader Sir Keir Starmer asked for assurances that the ONS infection survey will not see reduced capacity.

Sir Keir said: ‘We can’t turn off Britain’s radar before the war is won. Ignorance is bliss is not a responsible approach to a deadly virus.

‘It actually risks undoing all the hard won progress the British people have achieved over the last two years.’

There have also been concerns that scaling back the UK’s Covid testing system will make spotting a new, and potentially dangerous, variant of the virus more difficult.

But the PM said the UK’s laboratory networks will continue to monitor the evolution of the virus and identify any changes in characteristics.

He said: ‘We will prepare and maintain our capabilities to ramp up testing. 

‘We will continue to support other countries in developing their own surveillance capabilities because a new variant could emerge anywhere.’

Professor Paul Hunter, an infectious diseases expert at the University of East Anglia, called the ONS survey ‘one of the most valuable surveillance systems in the world’.

Ahead of the PM’s ‘living with Covid’ blueprint being set out, he said scrapping the survey when the UK will likely see further waves would be ‘idiotic’.

He argued the surveillance scheme would still be needed for another year. 

However, other experts say it will still work even if scaled back slightly, so long as variant surveillance is continued.

Dr Raghib Ali, an epidemiologist at the University of Cambridge, said the ONS infection survey should continue, albeit at a smaller scale. 

‘I would also continue the ONS infection survey at a smaller scale and continue variant surveillance to ensure we catch new variants as early as possible,’ he said.     

The ONS’ weekly report is considered the gold standard for tracking the UK’s outbreak and is used by ministers to monitor changes in cases.

The random swabbing ensures the surveillance does not need to rely on people coming forward for tests unlike the official system, allowing it to monitor the prevalence of the virus across the population.  

Its publication was pushed to twice a week in December amid the rapid spread of the Omicron variant to allow officials to keep a closer eye on the current wave.

There are an array of other Covid studies that scientists and misters have used to interpret how the virus was spreading across Britain and whether to lift or impose limits on the public.

Some of these like the ONS’s study are broad studies looking at a random samples of Britons or using data collected from wastewater with the aim of making broad conclusions about the how the virus was spreading among the entire population. 

Others have looked at specific groups with greater vulnerability or exposure to the virus, like care home residents and NHS staff. 

The future of all these surveillance systems is currently unknown as No10 unveils plans for the nation to live with Covid. 

Whether some will be scrapped entirely or just scaled down remains unclear.

In either eventuality, one of the key concerns is a potential reduced ability to spot a new Covid variant.

Under the current system, some of the samples collected by UK Covid surveillance system are sent to laboratories for genomic sequencing. 

This information is critical in spotting new mutations of Covid such as Omicron, how they are spreading and if they contain any mutations which could impact the severity of disease or effectiveness of vaccines. 

If mass testing is scaled back that will mean a lesser pool of samples for scientists to use in Covid variant detections.

This could lead to a new variant or mutated one gaining more traction in the UK before the alarm is raised.

Ahead of his Commons announcement, Mr Johnson said: ‘Today will mark a moment of pride after one of the most difficult periods in our country’s history as we begin to learn to live with Covid.’ 

‘The pandemic is not over but thanks to the incredible vaccine rollout we are now one step closer towards a return to normality and finally giving people back their freedoms while continuing to protect ourselves and others.’ 

Mr Johnson also unveiled a timetable for scrapping ‘free’ tests which have been costing the taxpayer around £2billion a month. 

He said the majority of Britons would not be able to access the tests for free after April 1. The Government is working with retailers to ensure people can buy the tests, which will remain free for older age groups and the most vulnerable.

The legal requirement to self-isolate will be scrapped from Thursday, along with contact tracing, the PM announced.

Chancellor Rishi Sunak is believed to have resisted pressure from Health Secretary Sajid Javid for more funding to maintain testing capacity and a slower timetable for ending the arrangements. 

The Department for Health is said to have asked for £5billion a year, but there are claims the costs will be footed from within existing budgets. 

There has already been some push-back to the plans with one Government advisor saying No10 is ‘abdicating’ its responsibility for looking after the public by dropping the final Covid rules.

Professor Robert West, a psychologist and member of a SAGE sub-committee who also criticised lifting restrictions last summer, said plans to live with Covid like the flu were ‘irresponsible’.

He argued the move meant that Boris Johnson and senior ministers would ‘accept’ between 20,000 and 80,000 virus deaths every year.

For comparison, flu kills in the region of 20,000 people in a bad winter.

Professor West, from University College London, said there are a ‘large number of deaths’ from heart disease and cancer but we don’t just say: ‘Well, we’ve got to live with it.’

‘We do an awful lot with heart disease and cancer and other forms of deaths to try to prevent them and to treat them,’ the SPI-B panelist added. ‘So it seems a little odd really to be saying ‘Well, Covid, we’re going to treat that differently. We’re not going to try and prevent it’.’ 

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