13C-urea breath test to validate eradication of Helicobacter pylori in an Israeli population.

Background: The 13C-urea breath test is the best non-invasive test to validate Helicobacter pylori eradication. Serology is unreliable for this purpose due to the slow and unpredictable decline in the antibody titer.

Objectives: To characterize a specific group of patients who were treated for H.