The Parliamentary Under-Secretary of State for Health and Social Care (Ashley Dalton)
I thank the right hon. Member for Salisbury (John Glen) for securing this important debate and for his passionate advocacy on behalf of his constituents for the vital work conducted by the UK Health Security Agency at its Porton Down site. I also take the opportunity to recognise the intervention from my hon. Friend the Member for Harlow (Chris Vince) and his passionate advocacy on behalf of his constituents.
Before I come to the decision-making process, I want to use this opportunity to reference some of the incredible work that takes place on the site. Whether it is advancing vaccine development to address global health threats, such as Mpox, or leading the world in evaluating vaccines to ensure that we have effective programmes that save countless lives, Porton Down stands as a pillar of excellence in our national health security infrastructure.
Through the UKHSA science strategy, we are committed to securing health and prosperity with partners in industry and academia. That is why we established the vaccine development and evaluation centre on the Porton Down site, securing learning from the pandemic and advancing our critical research on vaccines. Porton Down’s diagnostics capabilities are equally vital, providing the UK’s only 24/7 service for detecting rare and imported pathogens, including life-threatening diseases such as Marburg virus, Ebola and Lassa fever. The site also plays a unique role in environmental microbiology and biosafety, helping us to understand better how infections spread in real-world settings.
Porton Down’s role does not stop at healthcare. It reaches into our ecosystems, our food chain and our environment. Porton Down is a national leader in medical entomology, including the surveillance of invasive mosquitoes and ticks. Its work ensures that the UK can rapidly detect and respond to vector-borne diseases, protecting the public from threats before they gain a foothold. The site’s food, water and environmental microbiology teams provide additional expertise that is critical to national resilience and the Government’s work on climate change; but, crucially, the work of those globally leading teams requires the best facilities.
As the right hon. Member will know, many facilities on the site are ageing, and I appreciate that the people who work there need clarity on its future as quickly as possible. The Government are thoroughly assessing options for securing the facilities that are required for these highly specialist functions and services in the future.
Chris Vince
I could talk about the benefits of the Harlow site for a long time, and I often do, but on this occasion I will be brief. May I ask the Minister, when the Government are making those decisions, to take account of the fact that the Harlow site is very much shovel-ready and is ideally located, given its strong infrastructure and travel links and its proximity to existing health clusters? The site would very much future-proof this important work.
Ashley Dalton
I can assure my hon. Friend that the benefits of all options will be considered.
Dr Sullivan
Will my hon. Friend also take into account the multidisciplinary roles and spaces involved in the jobs that she has outlined, and the fact that the existence of a hub, with most of those elements together in one place, will stimulate innovation and great healthcare outcomes?
Ashley Dalton
I can assure my hon. Friend, and the House, that all considerations will be taken into account when this decision is made. As I have said, the Government are thoroughly assessing options, including all those that have been raised. Two main options are under consideration: to rebuild and refurbish some facilities at Porton Down and its sister site at Colindale in north London, or to build an entirely new facility in Harlow, Essex. In either event, the staff working in the defence, science and technology laboratory at Porton Down will remain there, and even when a decision is made on those options, nothing will happen overnight. Complexity and rigorous scientific requirements mean that completion will take more than a decade, which is why we continue to invest in maintaining our current site and facilities at Porton Down, with £38.1 million allocated for capital investment in the recent spending review.
The Government are committed to ensuring that we retain the ability to carry out the vital functions of UKHSA Porton Down. Members, the National Audit Office and the Public Accounts Committee have all advocated for an urgent decision, but identifying the right site that delivers on this mission, while ensuring best value for money, is a complex decision and one that we must get right. I can assure the House that extensive discussions are taking place between UKHSA, the Department of Health and Social Care and His Majesty’s Treasury to inform a decision, and I can confirm that this decision will be taken as part of the spending review, which will conclude next month.
Steve Barclay
Having had the opportunity to be involved in spending reviews, I would be interested to know the current provision for this scheme in the budget over the next three years, because alongside assessing the benefits, there will be the simple question of what is affordable. The NAO has set out an estimate of over £3 billion for the overall cost, but what has the Department provisioned for the spending review period?
Ashley Dalton
I do not currently have the detail on that, but I will write to the right hon. Gentleman following this debate. I can confirm that he knows as much as I do about what might be in the spending review, because those decisions have yet to be made, but more information will be made available as soon as possible.
As the Secretary of State said earlier this year,
“The worst decision is indecision”,—[Official Report, 13 March 2025; Vol. 763, c. 1295.]
and this Government are committed to sorting out this issue once and for all. A decision will be made in a matter of weeks. In anticipation of that decision, UKHSA is taking steps to prepare to remobilise the programme at pace. It recently invited the Government Internal Audit Agency to conduct a short review of its remobilisation plans as part of its commitment to ensure that there is maximum transparency and rigorous assessment of the programme. The agency has also obtained advice from the National Infrastructure and Service Transformation Authority.
I am sure that colleagues from across the House share my view that the work conducted at Porton Down is critical to protect the country. The recent pandemic put into sharp focus how this work is fundamental to keeping us all safe. Although there is still the outstanding question of how we can best preserve the facilities for the country, whatever decision we take will be made in full consultation with the staff at Porton Down, whose critical skills are highly valued by us all.
I thank the right hon. Member for Salisbury again for raising this vital issue, and all Members who have intervened in the debate. I commit to updating him on progress once a decision is made.
Question put and agreed to.