A survey of GPs shows the majority of patients who contacted them with symptoms within the last week had not self-isolated.
On Thursday, 39 new cases of Covid-19 were confirmed bringing the total to 26,065.
No additional deaths were recorded.
The median age of the new cases is 30, while 82% are under 45 years of age.
Cork GP, Dr Doireann O’Leary, says there is a worrying rise in the number of people not taking their symptoms seriously.
“If I am speaking to a patient on a phone consultation and they are describing these symptoms to me and I say to the patient that they need a Covid test, most people are surprised.
“They are saying they probably just have hay fever or a common cold. People seem to think it’s something that’s not going to happen to them.”
According to the HSE, the symptoms of Covid-19 that people should look out for are: