Robert Land Academy headmaster Ryan Smid confirmed that a staff member has contracted the virus.
The news comes the same week that the Wellandport military-themed boarding school commenced online learning.
As reported by the CBC, Smid believes that the individual, who was asymptomatic, contracted the virus off-campus.
He also says that the worker was supervising one of the school's four cohorts for several days.
The group is self-isolating in their barracks, but will still be allowed outside for exercise.
The province is allowing students currently in residence to resume remote learning.
Moyer Farms Making $12M Investment
Niagara Falls Going Green for St. Patrick's Day
St. Catharines RIDE Campaign
Davies Challenges Gov't on EV Support
Welland's Plan for Hospital Contribution
New GO Station Coming to Niagara
Most Serious Collisions in Summer: Region
Coach Service Added to Airport