https://www.gov.uk/guidance/nhs-test-and-trace-how-it-works?utm_source=62c084ed-8a21-47f3-aba6-0026b5bc0ec0&utm_medium=email&utm_campaign=govuk-notifications&utm_content=immediate

Please click through the link above to read the following information from the Government; 

Page Summary:  An overview of the NHS test and trace service, including what happens if you test positive for coronavirus (COVID-19) or have had close contact with someone who has tested positive.