a stomach full of helicobacter pylori in the people`s body. gastritis cause.

air bacillus bacteria bacterial bacterium belch belching belly body bowel burp burping digest digestion digestive disease drawing excess excessive gas gastritis gastro gerd health healthy helicobacter hygiene ibs illustration infection internal intestinal irritable medical medicine microbe microorganism odor organ overgrowth parasitic problem pylori reflux smell stomach sulfur symptom syndrome system toxins tract treatment vector virus