Saint Mary MacKillop Colleges made the decision on Tuesday afternoon to introduce remote learning, encouraging students and staff to begin self-isolating from Thursday.

"We believe moving to a remote learning model is the best way that we can keep not only our students, but their families and our community members safe and supported during this unprecedented health crisis," said principal John Burton in a statement on Tuesday.

"This is in line with the decisions being made by a number of independent schools around the country, and reflects the measures most governments have taken overseas in response to the crisis."

Parents in the community were informed of the decision on Monday night, before students attended their final two days at the school before the change came into effect.

"The situation is changing rapidly and is now entering a volatile phase of escalation," the principal said.

"As a school it is incumbent upon us to respond in an intentional and strategic manner, in the best interests of our school community."

It is a decision that has been applauded by some parents, including mother-of-three Karen Masson.

Ms Masson told The Daily Advertiser she was fortunate enough to be able to stay home with her three sons in years 11, 10 and 8.

"We're on a farm, so that's why I can stay home with them," Ms Masson said.

"I do feel for parents who aren't able to do that."

Despite what she called the "sudden decision" to close the school, Ms Masson said she was not surprised by the announcement.

"We fully support the school's decision, it's something that had been talked about," she said.

"The school has been prepared [and] teachers have been working hard to keep the students ahead. Even my boys are confident they can keep up with the work from home, which puts me at ease."

It is understood students will be able to continue their course work and access their teachers via online correspondence.

"They have plenty of work to be doing, the teachers have sent them home with a lot," Ms Masson said.

"I think this will be a good test of the technology. Unis have been doing a lot of distance learning and the school has used the tech before, but this will test it."

The decision follows yesterday's advice from NSW Health that schools should begin enforcing measures of social distancing.

The city's public schools will remain open for the foreseeable future, under advice of NSW Health.

Meanwhile, the Catholic Education Diocese of Wagga Wagga, which oversees Mater Dei College and Kildare College, has affirmed it will continue to monitor the situation before making a decision on whether the schools will remain open.