Antigenic Determinant of FlaA for Developing Serological Diagnostic Methods in Children.

The early diagnosis of infection is important for gastric cancer prevention and treatment. Although endoscopic biopsy is widely used for diagnosis, an accurate biopsy cannot be performed until a lesion becomes clear, especially in pediatric patients. Therefore, it is necessary to develop convenient and accurate methods for early diagnosis.

Increased Risk of Severe Gastric Symptoms by Virulence Factors , , , and in Infection.

Two virulence factors of , and , have been known to play a role in the development of severe gastric symptoms. However, they are not always associated with peptic ulcer or gastric cancer. To predict the disease outcome more accurately, it is necessary to understand the risk of severe symptoms linked to other virulence factors.