H. pylori is usually transmitted through contaminated food, water, or utensils, and it is more common in areas with poor sanitation. However, anyone can be at risk of infection, even in cleaner environments. Infection can also occur through contact with the saliva or bodily fluids of an infected person. If you have been infected with H. pylori, you may experience the following symptoms: - Nausea - Frequent burping - Loss of appetite - Stomach pain - Burning pain in the abdominal area - Worsening of abdominal pain when your stomach is empty - Bloating - Unintentional weight loss If you are concerned about any of these symptoms or are experiencing severe abdominal pain, bloody stools/vomit, or black stools/vomit, it's important to make an appointment with a gastroenterologist, who specialises in digestive system health.