Ключевые слова: background, bacteria, bacterium, biology, biopsy, blood sample, care, clinic, concept, cure, design, diagnosis, diagnostic, disease, doctor, endoscopist, endoscopy, epigastric pain, equipment, flat lay, gastric, gastritis, gastro, h pylori, health, healthcare, healthy, helicobacter, human, isolated, labarotary, medical, medicine, ogds, pathology, pbysician, pink, positive, results, stethoscope, surgeon, syringe, technicians, test, text, treatment, tube, upler scope, upper, virus,