Submitting.
Thousands of Derbyshire residents have been told to self isolate
It means 412 contacts were not reached by the service. The figures do not include those told to isolate in specific settings such as schools and prisons.
Across England, more than 160,000 cases were transferred to the contact tracing system between July 1 and 7, with 381,000 people identified as coming into close contact with someone who had tested positive – also the highest number since the week ending January 20.
Separate figures also show that more than half a million alerts were sent to users of the NHS Covid-19 app in England and Wales telling them to self-isolate.