Interesting, it was Austrialian physicians who discovered H. pylori caused peptic ulcer disease (PUD) and how to treat it effectively. The medical establishment fought this for years, saying it was quackery, until finally they were forced to admit that antibiotics and antacids cured it. It is a fascinating story, the details of which I don’t remember well at the moment, but it is interesting that the cure for this scourge was discovered by practicing physicians and not be researchers. Doctors all over the world were using their protocols to treat PUD for years while the “experts’ were saying it did not work.
Yes; Australians Robin Warren and Barry Marshall were awarded the Nobel Prize in Medicine in 2005 for their discovery in the 1980s that H. pylori caused the vast majority of peptic ulcers and could be treated successfully by a standard course of antibiotics. The medical community was highly skeptical of their findings until the evidence of their validity became overwhelming.