SOON
It took a total of 23 years for Dr. Barry Marshall and Dr. Robin Warren to convince the medical profession to acknowledge and embrace their breakthrough discovery, and they were eventually awarded the Nobel Prize in Physiology or Medicine in 2005 for their work on H. Pylori.
This newly discovered fact completely rocked common medical beliefs in those days.
Nobody believed that H. pylori could survive in the acidic environment of the stomach, because the stomach was supposed to be kept sterile by the natural presence of aggressive gastric juices (hydrochloric acid).
Today there is absolutely no doubt that H. pylori is the cause of 80% – 90% of all stomach ulcers.