Within the snail, the miracidium transforms into a sporocyst, which divides and eventually produces thousands of cercariae. |
Through a complex process of asexual replication, each miracidium larva gives rise to dozens, or even hundreds, of cercariae. |
The different geotactic behaviour of the two species of cercariae brings them into the ecological range of their different second intermediate hosts. |
It was not only possible to generate mother sporocysts from miracidia in vitro, but also to obtain adult worms from cercariae through in vitro cultivation. |
Studies on cercariae from Physa gyrina Say, with descriptions of two new species. |
Serum cytokines of the 20Krad-irradiated Schistosoma mansoni cercariae vaccinated, primary and superinfected Cercopethicus aethiops aethiops. |