The hub in question is a nursery facility based at Cathedral Primary in Motherwell.
Concerns were raised about the situation by parents who feared the risk of infection not only to children but to hub staff as both mixed freely during classes and break times.
It has also been claimed that the council has not dealt with the matter properly.
A source who wanted to remain anonymous said: “The feeling is that NLC are looking to brush it off especially with lockdown easing soon.
“Complaints are falling on deaf ears here.”
“A spokesperson for North Lanarkshire Council has strenously denied that this was the case.
He said:“The health and welfare of all our young people and staff is of paramount importance.
“At all times we have acted in accordance with all the health and safety guidance relating to coronavirus and are following the strictest cleaning and hygiene standards.
“If anyone in the school hubs shows signs of symptoms, action is taken immediately for them to self-isolate and to be tested.”
The Motherwell Times understands that the child has not returned to the hub since being diagnosed and has since been self isolating.
It is also understood that the nursery has been thoroughly cleaned on an ongoing basis daily.