11 December 2020: Despite achieving significant increases in testing activity, the Department of Health and Social Care’s test and trace service failed to meet recommended effectiveness rates, according to the NAO.
The rapid scale-up of COVID-19 test and trace service saw 23 million tests carried out, 630,000 of 850,000 people testing positive reached and 1.4 million of their contacts traced up to 4 November. However, at 66% the close contact trace rate is below the 80% needed to be effective.
The National Audit Office (NAO) has issued an interim report on the NHS Test and Trace Service set up by the Department of Health and Social Care (DHSC or the Department) to test for COVID-19 and to trace close contacts of those testing positive.
The NAO reports that between 28 May and 4 November 2020, only 41% of test results were provided within the target time of 24 hours and only 66% of close contacts of those testing positive were reached and asked to self-isolate, compared with the 80% rate recommended by the Scientific Advisory Group for Emergencies (SAGE) for an effective test and trace system.
Test and trace programmes are a core public health response in epidemics that can be used with other measures, such as social distancing, barriers (such as masks) and handwashing, to reduce infections. At the start of the COVID-19 outbreak, Public Health England carried out comprehensive testing and tracing on the relatively low numbers of initial infections, but this was suspended at the start of the first national lockdown in mid-March. The Department scaled-up testing capacity from April onwards and on 28 May 2020 launched the NHS Test and Trace Service covering England.
The NAO’s key findings include:
- The Department has achieved significant increases in testing activity, set up a national contact tracing service scratch and has tested millions of people.
- The delivery model chosen for the national test and trace programme, which excluded local public health teams from the response, was only documented in a retrospective business case written in September 2020.
- The Department spent £4bn up to October 2020, around £2bn less than forecast, due to underspending on laboratories, machines and mass testing. The total budget for 2020-21 is now £22bn with a significant expansion in mass testing planned in the remaining months of the financial year ending in March 2021.
- 407 contracts worth £7bn have been signed with 217 public and private organisations, with a further 154 contracts worth £16bn expected to be signed by next March (this includes spend going into the next financial year). An internal government review of test and trace systems in 15 other countries confirmed that the UK approach was atypical, as although some countries had used private sector outsourcing to increase testing capacity, none had done so to increase tracing capacity, which was generally built up from existing public health expertise.
- Connecting discrete services provided by different organisations into an effective end-to-end process has been challenging, with the initial focus on creating a ‘minimum viable process’ shifting to refining, integrating and stabilising the process so it operates reliably at scale.
- Accountability is unclear, with the executive chair of the test and trace service reporting directly to the Prime Minister and the Cabinet Secretary, bypassing normal reporting lines within the Department.
- There are now 593 testing sites and 15 laboratories, with plans to add a further 15 lighthouse laboratories and two high-capacity ‘mega-laboratories’ in January 2021. Testing capacity expanded rapidly in line with the public target of 500,000 available tests per day on 31 October, but the average number of tests since May has been only 68% of capacity, below the 85% expected level. The ambition is to increase testing capacity to 800,000 tests a day by the end of January.
- Turnaround of test results peaked in June with 93% of community (pillar 2) test results provided in 24 hours, but this had deteriorated to 14% around mid-October before improving to 38% by the beginning of November. Turnaround times for hospital and care homes have consistently been about 90%, albeit measured on a different basis.
- The Department did not plan for a sharp rise in testing demand in early autumn when schools and universities reopened, resulting in the number of tests available being limited, longer turnaround times and extra assistance being commissioned.
- Initial problems in sharing data with local authorities have now been largely resolved, but there are a number of significant data risks to be managed pending a planned upgrade of contact tracing software scheduled for January 2021.
- High reported levels of non-compliance with self-isolation rules represent a key risk to the success of test and trace, and national and local government have been trying to increase public engagement.
The NAO concludes by commenting that although a rapid scale-up in activity has been achieved with new infrastructure and capacity built from scratch, issues with implementation and potentially the initial choice of delivery model mean that the government is not yet achieving its objectives.
The NAO also highlights the most significant risks remaining, including in how to increase utilisation of testing capacity, manage spikes in testing demand and expand the use of local authority public health teams. There are challenges to be overcome in delivering mass testing across the country, increasing public engagement to improve compliance with self-isolation and in ensuring contracts awarded contain sufficient flexibility to respond to changing requirements at reasonable cost.
Finally, the NAO stresses the importance of embedding strong and sustainable management structures, controls and lines of accountability, addressing arrangements where accountability does not clearly align with organisational and strategic objectives in other aspects of the government’s COVID-19 response.
Alison Ring, director for public sector at ICAEW, commented: “While the need to move quickly in response to an out-of-control pandemic was always likely to prove extremely challenging, the NAO has highlighted how consequential the initial decisions made under pressure can be.
The NAO hints (without being explicit) that the choice to exclude local public health teams and local expertise from the initial roll-out of national test and tracing was a major mistake that the government is still struggling to recover from. They also do not sound entirely comfortable with the governance arrangements for the test and trace service and intend to look at value-for-money and contract management in their second report expected in spring 2021.
Despite an eye-watering £22bn price tag, the investment in test and trace will be worthwhile if it saves lives ahead of the roll-out of vaccines and enables restrictions on our freedom and on economic activity to be lifted as quickly as possible in 2021.”
Read the full report here.