Fig. 6

Photographs showing infected muscle tissues with T. spiralis larvae in two treated groups using combined therapy (ALB + MCS) (groups IBd and IIBd) (a–d) and those treated with albendazole (groups IBb and IIBb) (e, f). Staining: H&E; magnification: ×50. Blue arrows indicate inflammatory cells, red arrows show vacuolation or/and hyaline wall, and yellow arrow points to fragmented larvae. a, b Non-sensitized mice (group IBd); some larvae show features of degeneration (a) and some are seen to be intact (in b), and both are surrounded by mild inflammatory response. Best results are seen in c and d, representing sensitized mice (group IIBd) with a complete absence of the cystic larval stage with very few inflammatory cells. e Non-sensitized mice (group IBb); larvae are intact or show features of degeneration and surrounded by moderate inflammatory reaction. f Sensitized mice (group IIBb); a larval stage shows features of degeneration surrounded by intense inflammatory response