Public Health England (PHE) undertook contact tracing of all confirmed cases of COVID-19 during the contain phase of the response, until 12 March. Since then contact tracing activities have been undertaken when needed as part of outbreak investigations. Contact tracing is undertaken by staff in local health protection teams and the PHE Field Service as part of their day to day health protection work. It is not possible to provide a specific number of people involved at this stage.
The number of people identified in England since 1 March 2020 having been in close contact with COVID-19 confirmed cases, and the number of people traced are not available in the format requested.