Read the TB chapter in the book and it is even sadder than the episode.
The end was really sad in the episode. I was holding back tears and had a lump in my throat
Spoiler for Littlefish so don't read this if you have it recorded for later
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The girl had the baby and they put it in the dads arms then the daughter sat with him and the dad died holding his grandson.
Sister Bernadette has TB and the doctor took her to the hospital for tests and xrays was sad cos she is so lovely and stays all peaceful and calm even though she is ill.