7 March, 2021
## Vaccine Progress Tracker

## Update 3: More tweaks

## Update 2: Revised Over 16s Figure

## Update: Switching to Over 16s

## Gauging Population Over 18

Since the age ranges for which vaccinations are approved in Ireland continues to drop, I've decided to switch the bot to use the whole population again (4,977,400 according to the CSO). Additionally, with the more infectious Delta variant, it seems like people aged under 16 are probably more of a factor in spread now, so it seems wise to move towards considering the full population. It would be nice to have total/12+/16+ etc breakdowns, but unfortunately the available data doesn't have that level of granularity (but correct me if I'm wrong!).

Another tweak is that I'm changing the label for the first bar from "dose one of two" to "at least one dose" and including the Janssen doses. This seemed to be causing a bit of confusion, so hopefully the switch will make things clearer.

Using this tweet I've derived an estimate of 3,909,809 for the total over-16 population, so have updated the bot to use this going forward. It's nice to have something closer to an official figure now, and it's a relatively small change from what I'd been using before, so won't make a huge difference to the percentage so far.

To reflect some changes to the vaccine rollout in Ireland, I've now slightly modified the tracker to measure against the population aged 16 and over. Using the same method as above—just taking 1/2 of the 13-18 age ground instead of 1/6—I arrived at a new figure of 3,863,147 to base the percentage on.

*Original post*

After seeing the UK Vaccine Progress Tracker Twitter account yesterday, and already being a fan of the Year Progress one, I had to make an equivalent for Ireland.

Much like its UK counterpart, it's written in Python using the Tweepy API. Mine scrapes data from Ireland's COVID-19 Data Hub and will tweet only when new data has been added. Annoyingly, this source data seems to lag behind the "headline" data that gets reported in the news, but I haven't found any better official source.

Like the UK bot, I'm counting percentages of adult (18+) population, those being what the government roadmap focuses on. This was an interesting challenge because there isn't really a solid source for the number of people older than 18 living in Ireland. The most recent census was 2016, so its data is about as out of date as it's going to get. It states the population as 4,761,865 but uses a fairly inconvenient set of age groups—13-18 and 19-24—which creates a bit of grey area.

In the end I estimated that about 1/6 of the 13-18 age group would be 18, giving an approximate over-18 total of 3,572,000 or 75% of the total population. The most recent official estimate of total population comes from the Central Statistics Office and places the population at 4,977,400 as of April 2020. Wanting to incorporate this growth, I used the 75% proportion from the 2016 data to land on 3,733,679 as the number that I base the 'progress' percentage off. If anyone knows of a better estimate, let me know!