Staff at Naas General Hospital were said to be affected by the disease, with it being reported that a member of the hospital's cleaning staff tested positive for the virus in recent days.
Management have stated that public health protocols are being followed and that an outbreak control team is testing and contact tracing potential cases.
A ward in the hospital has also been closed to new admissions.
This reported outbreak is a stark reminder that as a community, we all must remain vigilant and continue to play our part in supporting all workers on the front line by adhering to national Covid-19 guidelines.
Siptu organiser John Hubbard said representatives of the union held an emergency meeting with management to discuss concerns.
He added: “This reported outbreak is a stark reminder that as a community, we all must remain vigilant and continue to play our part in supporting all workers on the front line by adhering to national Covid-19 guidelines.”
Restrictions have been imposed on three midlands counties following recent outbreaks.
Mr Hubbard said: “Management stated that public health protocols are being followed at the hospital, that an outbreak control team is testing and contact tracing potential cases, and that engagement with the union will continue regularly.”
