There are seven more cases of coronavirus in the Republic of Ireland - bringing the total to 13.
Four men picked it up after travelling, and two women got it from close contact with another confirmed case.
It's still unclear where the man from Cork contracted the virus.
CUH has cancelled all outpatient appointments today, however dialysis, chemotherapy, radiation treatments and infusions will proceed as planned.
The hospital have implemented strict visitor restrictions and and say appointments will be rescheduled as soon as possible.
The Department of Health's Tony Holohan says the patient at CUH may be the first community transmission case here:
Dr Martina Scallan is a virologist in Cork and lecturer in UCC.
She says the case in Cork is concerning - and is urging people to take steps to prevent more cases:
