A St John Primary school student in the same class bubble as the child who tested positive for coronavirus earlier this week has also now tested positive.
All children in that bubble went into self-isolation after the first student was diagnosed. The news of that case was sent to the media on Wednesday night.
Therefore, the affected students haven't been in school since then.
The government says it is not commenting further to protect the identity of this child and to respect the family's privacy.
The school was disinfected after the first case was discovered and it remains open to other students and staff.
There are now 82 known active cases of coronavirus in Jersey.
Statistics update: Since Thursday 22 October, 4 new cases have been identified (2 from inbound travel and 2 from...
Posted by Government of Jersey on Friday, 23 October 2020

Seriously-injured man found at Gorey Pier
Channel Islands Pride: What's on where?
Listed Victorian townhouse to be demolished for seven-storey office block on Esplanade
Plea to take care on coastline after surfer rescue
VIDEO: 'Great progress' as Amelia Seren (3) starts therapy following fundraiser
Sinking boat rescued during Jersey Air Display
Enforcement checks made on private boats coming to Jersey
Registration open to build own F1 car!