New figures have revealed that 700 cases of mumps have been reported in Dublin since the beginning of 2019.
According to the HSE, in the majority of cases the patient is aged between 15 and 24-years-old.
The number of reported cases has risen in recent weeks and it is believed this is down to the re-opening of schools and colleges.
What Is Mumps?
The viral infection causes fever, headaches, swollen glands and just a general feeling of discomfort.
the illness is passed from person to person, but it can be prevented by the routine MMR vaccine given to children.
Uptake rates in Ireland remain below the target of 95% required to prevent the spread of mumps.
So far this year, there have been 1,793 cases reported across Ireland.