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I was wondering if you can get Helicobacter pylori (the bacteria that can cause gastritis and ulcers) by kissing a person, if that person is infected with it?

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    Of note, 80% of people in the developing world are infected with H. Pylori. "Usually destroys the stomach lining" may be more accurately, "increases the risk for peptic ulcer disease". – Susan Apr 16 '16 at 21:40
  • Tnx for the comment but I've read that multiple times along with millions of posts and articles, suffering from digestive problems for over 5 years... Hoping to get a decent answer here – someone Apr 16 '16 at 22:02
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The mode of transmission of helicobacter is unknown but studies show that people with helicobacter infections may have it also in their saliva. So, in this study, 75% had helicobacter identified by molecular Probes.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC502720/

This has lead to some people saying that transmission by saliva is common.

https://publichealth.arizona.edu/outreach/health-literacy-awareness/hpylori/transmission

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