Pharmacies across the region are due to begin vaccinating people aged 18 to 34 against Covid-19 from today.
120 thousand Johnson and Johnson jabs will be distributed to chemists over the next week.
21 pharmacies in Co Mayo are offering the service, and a list of participating pharmacies in each county are available on the HSE website.
It marks a ramping up of the country's vaccination effort and could lead to all adults being protected against coronavirus as early as the end of August.
Tuam-based pharmacist Darragh O'Loughlin, general secretary of the Irish Pharmacy Union, says there's huge demand for these vaccines.....