Fig 5. Recalcitrant infection of BALB/c mice was induced by intraperitoneal injection of in vitro-transformed F. pedrosoi sclerotic cells.

(A and B) Spleens respectively from BALB/c mice at 10 days (A) and 50 days (B) post-inoculation as well as the normal control (top row). The infectious foci in the spleens and abdomen were indicated by red arrows and red circle. Scale bar = 1 mm. (A and B) HE staining (×400) for infected spleens at 10 days (A) and 50 days (B) post-inoculation (bottom row).