Vaccinations for Seoul

Hi everyone

I am going to Scotland and London and doing the 7 day London to Paris. However on the way over there I have a nights stop over in Seoul. I was just reading about Seoul and I found a site that said vaccinations are needed/ anti malarial tablets etc.

Does anyone know if this applies for all of Seoul or whether this is dependent on what activities you do/where you go. Im basically just going to be there to sleep for the night before my next flight but Im a bit worried about having to go through all this effort just for that. Any advice appreciated