Scotland worst of all UK nations at virus detection, study says

Scotland’s coronavirus detection rate is the worst of the UK nations, according to a report from former prime minister Gordon Brown’s think tank.

Even though the tracking and tracing programme is working relatively well, only around 32% of cases are being picked up by tests, Our Scottish Future says.

The group compared daily rates for positive coronavirus tests to the Office for National Statistics ’ (ONS) estimates of the total number of people who have had the virus.

Over a six-week period ending January 2, the ONS estimated a daily average of around 43,379 people in Scotland had C ovid -19, including asymptomatic cases, based on statistical modelling of population samples.

Over the same time period, Scotland’s testing programmes picked up a rolling average of 13,650 cases.

Our Scottish Future says this means 32% of the total cases are being picked up – with the equivalent figure for England being 41% while Wales was at 70% and Northern Ireland at 81%.

Even though Scotland’s contact-tracing system is generating more contacts than those in the rest of the UK, the think tank says the low detection rate and slow turnaround time for lab tests means the whole system is having almost no effect on slowing down the virus.

Each interview in Scotland yielded an average of 4.1 contacts – compared to England’s figure of 2.4 – but Our Scottish Future said the low detection rate meant the impact of Test and Protect on the R number is less than 5%.

Our Scottish Future says “big issues” with the symptomatic testing service need to be resolved, while excess capacity should be used for testing in schools.

The report says: “Scotland is currently only using around a third of its total testing capacity, with participation depressed by low levels of convenience and poor messaging across two separate testing systems (NHS Scotland and UK Government).”

It recommends a change in messaging to focus more on testing, which should be made more convenient through increased testing locations and provision of at-home lateral flow tests.

The paper concludes: “Comparing positive tests results to the infection rate estimated by the ONS surveillance survey implies that an average of 68% of cases since November have not been identified through testing – meaning that the vast majority of cases have not been contact-traced.

“Scotland is the worst performer in the UK on this metric.”

The rate of Covid detection is estimated at 32% in Scotland, the lowest across the United Kingdom.