Abstract

Helicobacter pylori (H. pylori) is a colonizer of more than half population worldwide among all age groups. Escherichia coli (E. coli) isolates are also colonizers of intestinal tract and several pathovars are important because of virulence factors leading to harm to the epithelial cells. A patient co-infected by E. coli and H. pylori was detected. The ELIZA kit and conventional biochemical tests were used for detection of H. pylori and E. coli, respectively. A 4 years old girl was diagnosed for anti H. pylori immunoglobulin G and a high rate of E. coli number (105 CFU/mL) was determined in the stool examination. There was no data regarding familial history of infection with H. pylori. This girl had a history of hospitalization in Salmas hospital. Clinical findings included: fever, diarrhea, chilling and dizziness. Co-infection of H. pylori and E. coli may complicate gastrointestinal disorders in children and if misdiagnosed or left untreated, there is the possibility of severe clinical outcomes.

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