Fig. 2

Pathogenicity to mice caused by S. japonicum derived from Jiangsu snails and Shandong snails. a Worm burden. b Liver egg count. c Liver pathology (original magnification: ×400). Data are expressed as the mean ± SD. Pairwise comparisons were performed with Student’s t-test (a P-value of ≤ 0.05 was considered statistically significant). Abbreviations: JS, Jiangsu snails; SD, Shandong snails; ns, not significant