In case you missed this Medium piece by Maryn McKenna last week (I did), it's the most legitimately scary thing on the internet right now. Antibiotic-resistant strains of bacteria are evolving faster than ever:
As antibiotics became more affordable and their use increased, bacteria developed defenses more quickly. Methicillin arrived in 1960 and methicillin resistance in 1962; levofloxacin in 1996 and the first resistant cases the same year; linezolid in 2000 and resistance to it in 2001; daptomycin in 2003 and the first signs of resistance in 2004.
This means that new antibiotics, which cost about $1 billion to develop, are becoming less and less attractive to pharmaceutical companies; [...]