It is becoming very clear that the nasty little bug called Helicobacter pylori (a.k.a. H. pylori) has a growing level of resistance to the usual drugs used in treating this infection. There is a new concept of sequential drug therapy that appears effectively combat one of the mechanisms of resistance that are employed by this bacterium.
H. pylori is associated with gastric cancer and generally should be treated. The infection causes chronic active gastritis that can cause abdominal pain and bloating. It is a very common cause of peptic ulcer disease.
The infection is often diagnosed by biopsy of the stomach, breath testing and a simple stool test. Blood testing for H. pylori is not very reliable.
Should you have concerns about this disease, see your doctor.