Close to 100 Ballarat Health Services workers are out of action after visiting exposure sites.
Meanwhile St John of God’s has lost about 30.
Acting BHS CEO Melanie Robertson says they are working to return them to work as quickly as possible.
"We are in a constant process of bringing people back to work," she said.
"The case at Ballarat Clarendon College had a significant impact on our workforce and we are starting to see workers who've returned a negative test transition back to our organisation."