No significant difference in SLC5A8 expression was observed between CagA positive, (n = 22, 0.20; IQR: 0–0.88) or negative children (n = 24, 0.05 IQR: 0–1.37; P = NS) suggesting the lack of a consistent relationship between SLC5A8 expression and infection with a CagA positive or negative H. pylori strains (Figure 3D). Here, S100A8 is linked to infection.