The management company first learned of the spread on New Year's Eve.
Over 60 cases of covid-19 have been confirmed at a Laois nursing home.
45 residents and 17 staff returned positive tests at Dromnín care facility in Stradbally.
Brookhaven Healthcare group, which runs the home, became aware of the outbreak on New Year's Eve and measures, including external cleaning and laundry staff, have been implemented.
Its chief executive Gearoid Brennan is paying tribute to the work of the staff: