There have been 92 cases of Mumps in the North West since the start of the year.
These have been mainly in the South Donegal and Sligo town areas however the number of cases have decreased somewhat in the past week.
The HSE says anyone who develops mumps should stay at home for the five days after disease onset to prevent spreading the infection to others.
All children and young adults should have two MMR doses which protects against Mumps, Measles and Rubella.
Public Health Registrar Dr Laura Heavey outlines the symptoms that people should look out for.