Speaking at the press briefing this evening, Dr Ronan Glynn, Acting Chief Medical Officer, Department of Health, said a significant number of these new cases are connected to travel.
"15 of today’s confirmed cases are directly or indirectly related to travel," he said.
"Now is not the time to be going abroad.
"NPHET today reiterates that all non-essential travel overseas should be avoided," Dr Glynn continued.
All of the new cases announced this evening are under the age of 44, with 77% under 25.
"Covid-19 is extremely infectious and none of us are immune.
"It is important that we all continue to follow public health advice and risk assess our actions," Dr Glynn stated.
Professor Philip Nolan, Chair of the NPHET Irish Epidemiological Modelling Advisory Group, said there has been a "small increase" in the number of reported cases over the last two weeks.
"The R-number is now at or above 1.
"There is an immediate need for all of us to take care and caution in our decisions and actions," he said.
The Department of Health has also confirmed that six additional Covid-19 related deaths have occurred, bringing the death toll to 1,743.