Fig. 1

Effect of febrifugine on the gross morphological alteration of Schistosoma mansoni adult worms. Paired S. mansoni adult worms were continuously incubated in media alone for 3 (a), 5 (b), 7 (c), and 8 (d) days (control group), while paired adult worms were incubated with 0.5 μg/ml febrifugine for 3 (e), 5 (f), 7 (g), and 8 (h) days. Arrows indicate the localization of black contents. The symbols ♂ and ♀ indicate male and female worms, respectively. ant. anterior part of body, pos. posterior part of body. Scale bar = 1 mm