Hastings Prince Edward District School Board reported four more cases of COVID-19 among students at its schools on Monday.
Two more students from Marmora Public School have tested positive but were not at school during their infectious period.
The school remains closed due to the outbreak with students in virtual learning until the new year.
A student from Sir John A. Macdonald Public School also tested positive but was not at school during their infectious period so there is no risk of transmission to staff or students.
And there is a case at Frankford Public School.
Affected families have been notified and the school remains open.
The school board will also be providing rapid antigen test kits to all students this week, as previously announced by the province.
Director of Education, Katherine MacIver, sent a letter home Monday with students providing guidance on how to use the tests.