18 to 34 year olds will be able to get Covid-19 vaccines in pharmacies from next Monday.
The official advice from NIAC is under 50's should get an mRNA vaccine such as Pfizer where possible.
However, 18 to 34 year olds who want an earlier vaccination will be able to get the one-shot Johnson and Johnson in a local pharmacy.
The HSE say 53,000 Johnson and Johnson vaccines are available at pharmacies nationally.
It says there are an additional 70,000 doses available at short notice "if needed".
People aged between 18 and 34, and those aged over 50 are encouraged to contact their local pharmacy to check availability.