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Updated: Aug 19, 2026

Quantitative Polymerase Chain Reaction (qPCR)-Based Rapid Diagnosis of Helicobacter pylori Infection and Antibiotic Resistance
Published on: July 28, 2023
[Helicobacter pylori infection in children without dyspepsia in Curundu and Parque Lefevre]
G M Halphen1, J Lindsay Estupiñán, L E Márquez
1Hospital Gorgas.
Insights
A study found that 55% of healthy children were positive for Helicobacter pylori. Poor sanitation significantly increased seropositivity rates in children.
Area of Science:
- Pediatric Infectious Diseases
- Microbiology
- Public Health
Background:
- Helicobacter pylori infection is a significant global health concern.
- Understanding seroprevalence in pediatric populations is crucial for public health strategies.
- Previous studies highlight varying prevalence rates across different regions and age groups.
Purpose of the Study:
- To determine the seroprevalence of Helicobacter pylori infection in healthy children.
- To investigate the correlation between age and H. pylori seropositivity.
- To assess the impact of household sanitation on H. pylori seroprevalence.
Main Methods:
- Enzyme-Linked Immunosorbent Assay (ELISA) IgG was used to detect H. pylori antibodies.
- The study included 83 consecutive healthy children.
- Participants were categorized into age groups (0-5, 6-10, 11-15 years) and by sanitation status.
Main Results:
- Overall seroprevalence of H. pylori was 55% among the studied children.
- Seropositivity rates varied by age: 55% (0-5 years), 47% (6-10 years), and 67% (11-15 years).
- Children without in-home sanitation showed significantly higher seropositivity (86%) compared to those with sanitation (47%).
Conclusions:
- Helicobacter pylori infection is common in healthy children, with higher rates in older children.
- Inadequate household sanitation is a critical risk factor for H. pylori infection in pediatric populations.
- Public health interventions should focus on improving sanitation to reduce H. pylori transmission in children.
Abstract:
A study of seroprevalence of Helicobacter pylori determined by ELISA IgG, was conducted in 83 consecutive healthy children. The majority of the children (55%) had the bacterium. Seropositivity was demonstrated in 55% of the age group 0-5 years old, in 47% of 6-10, and in 67%, of the group 11 to 15. Of the children without sanitary inside their homes 86% were seropositive, versus 47% of the children with sanitary in their homes.
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