Ireland's National Vaccination Programme has been ongoing since December, with many bumps along the way.
But despite a number of issues with supply, a pause on some jabs due to blood clots and a major change to the plan, Ireland has now vaccinated 20% of the population with at least one dose.
Both the Taoiseach Micheál Martin and Minister for Health Stephen Donnelly have said that Ireland is still 'on track' to have 80% of people given at least one dose by July 1.
And after the programme plan was changed to an age-based system once over-70s, the vulnerable and people with underlying conditions are immunised, we now have a bit of a clearer idea for when the groups in that plan will get jabbed.
Here's when you should expect to get your first Covid-19 vaccine:
1) People aged 65 years and older who are residents of long-term care facilities (likely to include all staff and residents on-site)
These were the first people to get the vaccines when the rollout began back in December. The process is ongoing.
2) Frontline healthcare workers
Alongside the people in the first group, healthcare workers began getting the jab when they were first available and that is continuing.
3) People aged 70 and older
As the groups in the first two cohorts steadily received their vaccines, doses then started to be given out to those over 70.
4) People aged 16-69 with a medical condition that puts them at very high risk of severe disease and death
At the same time, jabs were being administered to those who were most at risk to Covid-related diseases from aged 16-69 - and the above are who Ireland is currently vaccinating.
5) People aged 65-69 whose underlying condition puts them at a high risk of severe disease and death
While there are no official predictions being made due to the potential for change, Ireland is still on track to have group five offered a vaccine by the end of the month, particularly as Pfizer have upped their supply.
6) Other people aged 65-69 & Key workers essential to the vaccine programme
Once group five has been looked after, the HSE will deal with two groups at the same time in group six - everyone over 65 who has not yet been vaccinated and key workers who are essential to the rollout.
If all goes to plan, these could have their first doses administered by the middle of May.
7) People aged 16-64 who have an underlying condition that puts them at high risk of severe disease and death
While these are not as at-risk as those in groups four or five, the Government will be keen to get this cohort vaccinated as soon as they can.
Should all the delivery times be met and all the supply issues that caused a delay at the start of the year be fixed, then people in group seven will be hopeful of a dose by the end of May.
8) Residents of long-term care facilities aged 16-64
Those in group one should hopefully be fully vaccinated by this point, allowing the focus to turn fully to the other residents at long-term care facilities.
The target for the HSE should be early June as the summer creeps in.
9) People aged 64 years and younger in the following order: 64-55 years, 54-45 years, 44-35 years, 34-25 years, 24-16 years AND People aged 16-64 living or working in crowded settings
The Taoiseach and the Minister for Health have both been consistent in their prediction that every adult in Ireland will have had a Covid-19 vaccine by September.
A big part of that is having four out of five people given the jab by the end of June.
That was before the plan was changed to an age-based system, so it's safe to say that the majority of group nine will have been given at least one vaccine by that date.
