Updated: 9.40am
The Chief Medical Officer (CMO) Prof Breada Smyth said she is very concerned the country is at high risk of a measles outbreak.
It follows the death of a man in his 40's in the first reported case of the disease here this year.
The man died at a hospital in the Dublin and Midlands health region after recently travelling to an event in England.
The World Health Organisation (WHO) recommends measles vaccination rate of 95 per cent. However, it has fallen below 90 per cent in Ireland.
There has been an increase in cases across Europe in recent months, with several fatalities recorded in Romania.
More than 170 measles cases were diagnosed in the West Midlands in England between December 2023 and mid-January 2024, although all regions in England have reported cases.
In Ireland, four measles cases were reported in 2023 and two in 2022.
While no cases were reported in 2021, there were five incidences recorded in 2020, the HSE said, with no deaths reported in any of those years.
The HSE said its Health Protection Surveillance Centre was notified of the death.
“HSE public health teams, along with the HSE measles national incident management team (IMT), are taking all necessary public health actions in relation to the case,” the HSE said in a statement on Wednesday.
“The HSE measles IMT was established in response to a recent rise in measles cases in the UK and Europe.
“The HSE will keep the public informed of further measures and, in the meantime, anyone with concerns should contact their GP.”
Measles is a highly infectious viral illness. Measles starts with cold-like symptoms that develop about 10 days after you get infected. You will then get a measles rash a few days later. The illness usually lasts 7 to 10 days.
For more information on symptoms, how to treat… pic.twitter.com/Apm2XjeencAdvertisement— HSE Ireland (@HSELive) February 2, 2024
Measles is highly contagious, and while often associated with a rash, the virus can spread around the body, potentially leading to severe complications.
It usually takes around seven to 14 days for the first symptoms to appear, with those infected typically suffering with a high temperature, a cough, runny or blocked nose, and red, watery eyes, followed a few days later by the rash.
The update rate for the MMR (measles, mumps and rubella) vaccine is at 89.2 per cent in Ireland, and in some areas has fallen below 80 per cent.
On Tuesday, Mr Donnelly briefed Cabinet on the risk of a measles outbreak and said about one in five young men in Ireland aged around 19-21 are not vaccinated against the virus.
Authorities believe misinformation in the past affected the number of children who received the MMR vaccine.
An MMR catch-up programme launched in November 2023 through GPs aims for those who are unvaccinated or partially vaccinated to opt in.
The vaccine is free from GPs for children aged 10 and under.
