That's according to a draft of the revised vaccine plan, which is due to be published early next week.
Work on the 27th revision of the vaccine plan will continue through the weekend.
An age based approach will still be at the centre of the plan.
Head of the HSE Paul Reid says the revision will take into account the latest recommendations from the National Immunisation Advisory Committee.
According to a draft of the revised plan, 2.5 million doses will be administerd by the end of May, 4 million by the end of June and 6 million by the end of July.
Daina Moorehouse On The Brink Of Medal After Two Victories In Brazil World Cup
Wicklow Households Encouraged To Explore Grants To Lower Energy Bills
New Equipment To Support Disabled Water Sports Users In Accessibility Boost For Bray Harbour
Dominant Daina Moorehouse Into World Cup Last 16 After Opening Brazilian Bout
Greystones E-Bike Scheme Flourishing With Over 12,000 Recorded Trips