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Chordates. Cookiecutter shark. Candiru (vampire fish of Brazil, a facultative parasite) Lampreys. Male Deep sea anglers. False cleanerfish. Hood mockingbird. Oxpeckers (cleaning symbiosis) Snubnosed eel.
Main article: Human parasite Endoparasites Protozoan organisms Common name of organism or disease Latin name (sorted) Body parts affected Diagnostic specimen Prevalence Source/Transmission (Reservoir/Vector) Granulomatous amoebic encephalitis and Acanthamoeba keratitis (eye infection) Acanthamoeba spp. eye, brain, skin culture worldwide contact lenses cleaned with contaminated tap water ...
Parasitism is a major aspect of evolutionary ecology; for example, almost all free-living animals are host to at least one species of parasite. Vertebrates, the best-studied group, are hosts to between 75,000 and 300,000 species of helminths and an uncounted number of parasitic microorganisms.
The smallest nematodes are microscopic, while free-living species can reach as much as 5 cm (2 in), and some parasitic species are larger still, reaching over 1 m (3 ft) in length. [46]: 271 The body is often ornamented with ridges, rings, bristles, or other distinctive structures. [47] The head of a nematode is relatively distinct.
Human parasites include various protozoa and worms. Human parasites are divided into endoparasites, which cause infection inside the body, and ectoparasites, which cause infection superficially within the skin. The cysts and eggs of endoparasites may be found in feces, which aids in the detection of the parasite in the human host while also ...
Cestoda. Cestoda is a class of parasitic worms in the flatworm phylum (Platyhelminthes). Most of the species—and the best-known—are those in the subclass Eucestoda; they are ribbon-like worms as adults, known as tapeworms. Their bodies consist of many similar units known as proglottids—essentially packages of eggs which are regularly shed ...
Coccidian parasites infect the intestinal tracts of animals, [2] and are the largest group of apicomplexan protozoa. Infection with these parasites is known as coccidiosis. Coccidia can infect all mammals, some birds, some fish, some reptiles, and some amphibians. Most species of coccidia are species-specific in their host.
Plasmodium (Laverania) Plasmodium (Novyella) Plasmodium (Paraplasmodium) Plasmodium (Plasmodium) Plasmodium (Sauramoeba) Plasmodium (Vinckeia) The genus Plasmodium is a member of the order Haemosporidia. It is the largest genus within this order and currently consists of over 250 species. They cause malaria in many different vertebrates.