Table 1.
Examples of current evidence in support of both harmful and beneficial effects correlated with Helicobacter pylori infection.
| Effect of infection | Affect on health | Citation |
|---|---|---|
| Increased prevalence of gastric cancer | (−) | Uemura et al. (2001), Kodaman et al. (2014) |
| Increased risk of infection | (−) | Shahinian et al. (2000), |
| with Vibrio cholera, and risk of progressing to severe cholera | (−) | Clemens et al. (1995) |
| Increased prevalence of peptic ulcers | (−) | Maeda et al. (1998) |
| Chronic and acute gastritis | (−) | Graham et al. (2004) |
| Suppression of bacteria causing tuberculosis | (+) | Perry et al. (2010) |
| Reduced risk of eczema | (+) | Amberbir et al. (2011) |
| Reduced risk of gastroesophogeal reflux disease | (+) | Sonnenberg et al. (2010)* |
| Protection against diarrheal diseases | (+) | Cohen et al. (2012) |
| Reduced risk of esophageal cancer | (+) | Islami and Kamangar (2008) |
| Reduction of asthma and allergy | (+) | Chen and Blaser (2007) |
| Reduced risk of irritable bowel disease | (+) | Luther et al. (2010) |
*
But see Qian et al. (2011).