I learned today that two Australian scientists were awarded the Nobel Prize in Medicine for their discovery back in the 1980's that a bacterium by the name of Helicobacterium pylori was the cause of duodenal and gastric ulcers rather than stress and excessive gastric acidity as previously thought. I always enjoyed lecturing on that to medical students back then because it was controversial for some years. I was also always a bit struck by the irony that my own Dad died of complications from duodenal ulcer surgery complications in 1958 that could have been cured by a week's worth of antibiotics.
Timing is everything they say.