The presence of IgG antibodies indicate acquired immunity to helicobacter.
If you have antibodies to H. pylori in your blood, it means you either are currently infected or have been infected in the past.
To check if you have a current infection with H Pylori - you might do a Stool antigen assay test. If this test is positive then it would be indicative that you have a current H pylori infection and you still need to undergo specific treatment for it.
If the test is negative then it would be indicative that your infection has been cleared.
But remember that Medicines may change the results of this test. Hence do not take antibiotics or medicines containing bismuth (such as Pepto-Bismol) for 1 month before the test. Also do not take proton pump inhibitors (such as Nexium or Prilosec) for 2 weeks before the test.
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