By Kate Pickles For The Daily Mail
Published: 00:01 GMT, 28 October 2020 | Updated: 00:12 GMT, 28 October 2020
Britain's test and trace system is 'getting worse' and struggling to cope with the resurgence of coronavirus, according to experts.
Gaps in the data make it impossible to know whether official restrictions are reducing the spread of infection, say the researchers.
Scientists led by University College London say the gaps are starkly illustrated by their new 'data dashboard' Covid Red, which is designed to bring together all available virus information.
Professor Christina Pagel, a co-developer, said: 'We don't know what percentage of people with symptoms are actually isolating for the full length of time or their contacts.'
Scientists led by University College London say Britain's test and trace system is struggling to cope with the resurgence of coronavirus. Pictured: NHS England's Test and Trace app
She added: 'If people are not isolating then it's just