Helicobacter Forums

if you are infected with HP before, your immune system will have memory and your blood test will stay positive for a long time even after HP eradication. Some anti-HP antibody can remain the body for months or years.

So if you are free of HP, your immune system will gradually forgot about HP and that's why a negative blood test is almost always true. A positive blood test may be because of the memory, not the current infection status.

So stick with your PPI. if omeprazole is not good, switch to rabeprazole.