Freshwater snails are the intermediate hosts of a variety of trematode flukes and some nematodes (roundworms) that cause many human diseases (Ross et al., 1997, Figure 6.6(c) and (d)).
Are roundworms host specific?
Roundworm species of veterinary importance For each species the predilection site(s) and most affected hosts are mentioned. Some species are quite host-specific; other species can infect a wide range of hosts. Many species are cosmopolitan, whereas other occurs only in certain regions.
What parasite has two intermediate hosts?
Like many other parasites, these trematodes have a three host life cycle involving two intermediate hosts and one definitive host.
Which parasite has an intermediate host?
Table 2: Parasite and their intermediate host(s)ParasiteIntermediate HostTapeworm (Taenia solium)Humans, Cow, PigsSchistosoma mansoniFreshwater snails (Biomphalaria spp.)Toxoplasma gondiiMany mammals and birds
Do nematodes have intermediate hosts?
We found that the principal intermediate hosts of the two nematodes were filter-feeding mayflies of the genera Ephemera, Photamanthus and Isonychia. Ephemera strigata seemed to be the most important intermediate host of these nematodes.
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