Six of those are in the community, Director of Public Health Nicola Brink has said, and two people are in hospital.
As well as year eight at St Sampson's High, Hautes Capelles has been identified as a school of interest and parents are being contacted.
Anyone who was in the Ship & Crown and the Crow's Nest between 18 January and 20 January have already been urged to contact Public Health and there are 'potentially other areas of interest,' she said.
Speaking at a press conference at lunchtime, Dr Brink said that it has been a busy 24 hours.
On Friday they detected the four community cases and that triggered progression to lockdown
Yesterday a further seven cases were identified, one of them a community case.
Then further results overnight identified a further 20 cases, 19 of these were contacts and one a further community seeding case.
'Some community cases, as we go through contact traces, may well be linked to other cases,' said Dr Brink.
She warned that it was highly likely more cases would be identified.
Samples will be sent to the UK on Monday to find out if any of them are the new variant.
She urged anyone with symptoms to come forward and be tested.
The testing tent can cope with 1,000 people a day.
Civil Contingencies Authority president Peter Ferbrache said that regulations were now in force and being actively policed.
'The simple aim is to minimise contact as much as possible,' he said.