EDMONTON -- Two more schools in Edmonton are dealing with COVID-19 cases during their second week back. 

Edmonton Catholic Schools has confirmed a staff member with Archbishop MacDonald High School has tested positive for COVID-19.

According to the school board, they learned about the case on Saturday. The staff member was reportedly last in the school on Friday.

Alberta Health Services will be contacting parents and guardians of students or staff who may have been in contact with the individual.

Areas of the school that have been identified will be thoroughly cleaned and masks will continue to be mandatory in the school.

ROSS SHEPPARD GRADE 10 CLASS SENT HOME 

And, nearly 100 Grade 10 students need to self isolate after someone from Ross Sheppard School tested positive for the disease.

Officials at that school did not say whether the ill person was a staff member or student, but that AHS has directed all 96 students in the grade to be tested.

“The school called impacted students. The students will be supported with learning while they are required to isolate at home. The school will provide more information to these families soon,” officials told CTV News Edmonton.

Ross Sheppard School, Edmonton

They added the school underwent a “deep clean” before reopening Tuesday.

Archbishop O’Leary High School also confirmed a student case on Sept. 8 

Each of the three high schools reminded families to monitor for symptoms. Anyone with symptoms should call 811 and stay home until they can get a negative COVID-19 test. 

COVID-19 cases have been found in 11 schools across the province, Dr. Deena Hinshaw said Tuesday. 

"Currently, the cases in school appear to be from community transmission," the chief medical officer of health said. "They're not linked to transmission within the schools."

In Edmonton, cases have also been identified at École Sainte-Jeanne-d´Arc and Louis St. Laurent Junior/Senior High School. And in the metro region, there are also COVID-19 cases in Sherwood Park's Glen Allan Elementary and St. Albert's Leo Nickerson school. 

Over the weekend, the administration of Holy Trinity Catholic High School in Fort McMuray informed families a positive diagnosis "not related to the classroom" had been found. 

As well, a Calgary principal, upon finding out her school was the fifth in the city to identify a case, wrote a public letter blaming Premier Jason Kenney and the education ministry for not providing enough supports to schools as they reopened.