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)). The most important of these diseases is schistosomiasis (sometimes referred to as Bilharzia) (Mahmoud, 2001).
Which 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.
Which parasites have intermediate hosts?
Table 2: Parasite and their intermediate host(s)ParasiteIntermediate HostTapeworm (Taenia solium)Humans, Cow, PigsSchistosoma mansoniFreshwater snails (Biomphalaria spp.)Toxoplasma gondiiMany mammals and birds
Does nematodes require intermediate host?
Direct life cycle. Nematode can infect fish directly without the need for an intermediate host.
Does roundworm have intermediate host?
Many roundworms have a complicated life cycle that includes both main hosts (large mammals such as humans or pigs) and intermediate hosts (small animals such as snails).
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