If needed I'm sure I can also use a bit of magic to get into restricted areas in every hospital that isn't magically warded, though I'm not sure this world has any concept of warding out warlocks.

[ Lucky for him, as it makes snooping around a lot easier. ]

As far as the plague goes, I have also only heard bits and pieces from the locals myself, all spoken in the past tense. I doubt anyone is even aware of themselves if they are in fact dead –or are just really good at hiding it on a collective level.