Compared to baseline levels, the median concentration of serum TFF1 was significantly elevated at week 8 (22.1 pg/mL vs. 33.9 pg/mL, p < 0.05) and week 36 (22.1 pg/mL vs. 37.5 pg/mL, p < 0.05) post-infection (Figure 7C). This evidence concerns the gene TFF1 and infection.