Barnet Council has urged local residents presenting at least one Covid-19 symptom to get tested as soon as possible.
Those with a new and continuous cough, high temperature, or change to their sense of taste and smell should book an appointment on www.gov.uk/get-coronavirus-test.
Anyone travelling to a testing centre should socially distance, wear face coverings before, after and during their appointment and abstain from using public transport and taxis.
“Please also continue to wash your hands thoroughly and regularly, and socially distance from anyone you don’t live with,” said the local authority’s leader Councillor Dan Thomas.