A spokesperson for Intel has confirmed that a construction worker that was working on its site in Leixlip, Co Kildare has tested positive for Covid-19.
The worker was tested after falling ill over the weekend.
Intel was informed by the construction company in question on Tuesday of the positive test.
The individual is now self-isolating.
Intel said the company has been "conducting the necessary follow up in conjunction with public health authorities".
A spokesperson for Intel has confirmed that the construction site remains operational.
Meanwhile, the latest figures from the Health Service Executive show that there are 11 confirmed cases of Covid-19 in hospitals.
Of these, six patients are in intensive care units. There are also 137 suspected cases in hospitals, of which five are in intensive care units
Hospitals have 39 adult ICU beds free.
Last night, health officials reported one further death, which occurred earlier in the outbreak, while 40 new cases of the virus were also confirmed.
There have now been a total of 1,774 coronavirus-related deaths here and 26,838 cases. This includes the denotification of two previously confirmed cases.
Separately, the five-day average for reported cases is currently at 75 a day.
In late June, the five-day average was under ten a day.
The Health Service Executive is testing 4,600 people a day.
The 'R' number, or reproductive rate, of the virus is now estimated at 1.6, down from 1.8 last week.
The 'R' number indicates the number of people on average that an infected person will pass the virus on to.
In relation to the new restrictions in Kildare, Laois and Offaly, the Acting Chief Medical Officer said the National Public Health Emergency Team "is still not completely confident that we have avoided community transmission. We simply won't know that until next week".
Speaking at a media briefing yesterday evening, Dr Ronan Glynn said cases were located throughout the counties affected as people live and socialise all across these locations.
Over the course of this week, we are "likely to see days with numbers that are significantly higher" than the numbers reported yesterday, but it was important to look at the trends over the 14 days.
The World Health Organization says data to date suggests 80% of Covid-19 infections are mild or asymptomatic, 15% are severe infection, requiring oxygen, and 5% are critical, requiring ventilation.
Generally, you need to be 15 minutes or more in the vicinity of an infected person and within two metres of them, to be considered at-risk, or a close contact.
Additional reporting Brian Finn