The Minister for Health, Simon Harris, said there was a need for everyone, regardless of age, to be vigilant and follow public health advice.
He said this was not just to keep ourselves safe but also to protect others. Minister Harris also warned younger people that no group is immune to Covid-19.
His warning comes after nine of the 22 new confirmed cases of the virus announced last night, were diagnosed in people under the age of 35.
Latest figures show there was one new admission to intensive care in the last 24 hours. This brings the number of people in ICU with confirmed cases of the virus to 17 and 41 people are in hospital with confirmed Covid-19 and there are 137 suspected cases also in hospital.