Researchers at two large children's hospitals in Somalia tested 175 children and found that more than one in three carried Helicobacter pylori (H. pylori), a bacterial infection that lives in the stomach. If left untreated, this infection can eventually cause ulcers and increase stomach cancer risk later in life.
While this study was conducted in Somalia, the risk factors it identified are relevant to Singapore families. H. pylori spreads through contaminated food and water, and many Singaporean children have extended family ties to rural areas across Southeast Asia where sanitation varies. Others may consume imported produce or street food where hygiene standards are uncertain.
Rural living and parental education shape infection risk
The study found that children living in rural areas were three times more likely to be infected than those in cities. Infection rates were also more than twice as high when parents had lower levels of formal education. This suggests that access to clean water, sanitation infrastructure, and health knowledge all play a role. In Singapore's context, this matters for families with connections to less urbanised areas or those with limited access to food safety information.
How your child eats matters more than you might think
Two food-related habits emerged as major risk factors. Children who regularly ate street food were 2.7 times more likely to carry H. pylori, and families who didn't wash fruits and vegetables before serving nearly doubled their child's infection risk. Interestingly, while hand-washing seemed important initially, it became less significant once researchers accounted for food preparation practices—meaning what your child eats is more critical than previously thought.
Simple steps to reduce your child's risk
- Wash all fruits and vegetables thoroughly under running water before serving, regardless of appearance or source.
- Choose established food vendors with visible hygiene standards over informal street food sources when possible.
- If your family travels to rural areas or countries with variable sanitation, be extra cautious with fresh produce and water sources.