For the record, plague seems reasonably prolific in the socialist paradises of the workers and peasants with free medical care for all.
Or at least such was so circa 10 years ago, when I found myself constantly bumping into obstacles, or policemen, surrounding a village out in the boondocks.
Even despite my blue-and-gold passport, a sure ticket into places one wasn't supposed to go, with some vodka or currency lubrication, of course, I was shoved away, and in two cases, actually driven away (in a motor vehicle).
It's in those 27 diaries I kept, but I'm not about to go to town to look it up; I think such happened to me seven or eight times, my bumping into plague there.