It brings the total to 22
Five are in the Republic and one is in the North.
The Republic's cases are in the east, west and south of the country - and one involves a healthcare worker.
Here in Cork, strict visitor restrictions have been put in place at Cork University hospital, CUMH, the Mercy, Bantry General Hospital, and Mallow General Hospital, as well as all nursing homes across the county.
60 staff members at CUH are continuing to self-isolate after a man in his 40s was diagnosed with the virus Leeside.
Chief Medical Officer Tony Holohan says he's satisfied that enough information about each new case is being made public.
