Where do you get this? It is the person who has the surface of the body. The stomach is more like a bag. The surface of the stomach is usually called the surface of its mucous membrane. From this surface, you won't go deep into the thickness of the stomach wall. Because it is a thin-walled hollow organ. But helicobacters can indeed migrate into the body of the stomach.
In general, the stomach is more like an inverted jug. The bottom is on top, the neck is below, and in the middle there will be that very body.
So helicobacters love to live in the neck. That is, at the exit from the stomach. There, they cunningly tickle the stomach wall, which releases hormones that are responsible for the production of acid. Then the excess of this acid is decanted into the duodenum and can burn the ulcer there.
It is noteworthy that the acid itself is formed closer to the fundus of the stomach. The helicobacters do not like the acid, and they sit downstairs closer to the exit.
But helicobacters can slowly eat up, poison and spoil the cells that produce acid. So, millimeter by millimeter, microbes clear a place for themselves to live and gradually migrate into the body of the stomach. That is, higher.
It is clear that if we eat drugs like omeprazole, then there will be less acid in the stomach, and it is easier for helicobacters to climb up into the body of the stomach. Only this infection has nowhere to hide. She can handle the acid, but she won't run away from antibiotics. So don't worry about it.
Read my other articles with the word "helicobacter":