[Quoth]

Now I get you. I'm not sure about the outrage as "an bord sláinte" is usually called the Health Board.

I think media abroad often has Prime Minister and Deputy minister as they can't pronounce the Irish. Even people here with no Irish have an idea of pronunciation.

The old English for Tánaiste is Tanist. Both really mean understudy/heir to the leader. In Ireland before English Henry II, there was no primogeniture. The nobles of a tribe picked a Tánaiste by vote to be the successor, and trained, while the king/prince/chief still ruled. Henry II told Chiefs:
"If you swear allegiance to me I will hand you back the land and it will be hereditary."
Though someone from a Chief's family might get elected. One of the last was Grainne. Her father was Chief or King in Mayo. So she was a Queen. The English called her Princess Grace O'Malley, the Pirate. She was born and died about the same time as Queen Elisabeth. They met and used their common language, Latin. The last High King, was 500 years earlier and not a National ruler. Ireland as a Nation is really an 18th C. idea.

Edit
Scottish is Bòrd-Slàinte
You'll find Scots Gaelic on the web for Scottish health boards, but English for the Irish ones.