(I guess this is the right place for this...)
Hey all! I'm
considering turning a detective story of mine into a sort of post-post apocalyptic story. By this, I mean an Earth-bound setting in a world that has already experienced "an apocalypse" of sorts. (by war, technological failure, bombs, virus, etc.) Far enough past the actual event that humanity has started to gather itself. (no more just surviving, ultra-chaos) Governments are reestablishing, schools are coming back, and actual law enforcement is beginning to gain hold over vigilante-like lawmen. The thing is, I need things like hospitals to be more-or-less functional at this stage, with technology in place--it can be rare/difficult, but it needs to exist. Other technologies as well. In case you haven't guessed, this is still very much in the plot bunny stage, but I'm curious how much reworking it would take to make this happen. So. Question:
Which "kind" of apocalypse would be best to use, in order for the world/nation to sort of rebound after a few generations? Considering the far-reaching, long-lasting effects of any apocalyptic event, is it feasibly possible to have this set up?
Thoughts, questions, speculations, scientific and speculative articles, and randomness welcome!

~Cae