All Bacteriological and Antimicrobial Discovery

Discoveries that identified bacteria as a cause of disease or produced an antimicrobial agent to treat bacterial infection. Belongs here: Germ Theory of Disease, the Discovery of Helicobacter pylori as a Cause of Peptic Ulcer Disease, the Discovery of Streptomycin and Penicillin. Does not belong here: a discovery concerning a virus or parasite rather than a bacterium, grouped under virological, parasitological and immunologic discovery, or the surgical antiseptic technique that followed from germ theory, grouped under surgical and perioperative discovery because its significance here is procedural rather than causal.