HSE has warned parents in Parnawida after the paraffin's emergence last week.
After some of the children had symptoms of the disease, parents of those who attended school in Claresville were receiving.
This is mostly between the ages of 15 and 29, after a few events in the region.
HSE, HSE and HSE advise anyone to determine whether there are two doses of MMR vaccine for an additional dose.
The vaccine provides the best protection against infection, but it should be noted that it will be 28 days before its use.
Parents are also advised to advise children who have symptoms for at least five days after the neck swelling begins.
Last month, the HL was postponed after 7 weeks for paraffin diagnosis for 45 people in the western Ireland.
However, experts warn that children may be infected by others, and those who suffer are showing other symptoms such as throat and cough.
Mushrooms, like saliva, are in direct contact, as well as with air particles after coughing or crushing.
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