Fig. 7
Histological sections of the spleen from mice in G1 infected with T. congolense and treated with 1500Â mg/kg of C. swynnertonii extracts, 8 hourly intervals but died on third day of treatment. There are white foci of variable sizes in the white pulp (black arrows) in (a). Pyknosis (black arrows) and karyorrhexis (arrow head) of lymphocytes are evident in (b). Magnifications, (a) 100 x; (b) 1000 x