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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.
Class: Cestoda. Subclass: Eucestoda. Eucestoda, commonly referred to as tapeworms, is the larger of the two subclasses of flatworms in the class Cestoda (the other subclass is Cestodaria ). Larvae have six posterior hooks on the scolex (head), in contrast to the ten-hooked Cestodaria.
Diagnosis of infection with adult cestodes is based on identification of eggs and segments (proglottides) in feces. Larval infections are more difficult to assess; serology and biopsy are helpful. Control depends on sanitation, personal hygiene, and thorough cooking of meat and fish.
Cestode infection is typically foodborne or acquired by accidental ingestion of invertebrate hosts. All cestodes cycle through 3 stages—eggs, larvae, and adults. Adults inhabit the intestines of definitive, or final, hosts, which are mammalian carnivores, including humans.
Jun 13, 2022 · Cestodes are tapeworms. There is a large variety of tapeworms but only those that are pathogenic to humans will be discussed here. Tapeworms that are pathogenic to humans. These include: Taenia solium (pork tapeworm). Taenia saginata (beef tapeworm). Diphyllobothrium latum (fish or broad tapeworm).
Definition: What are Cestodes? Commonly known as tapeworms, cestodes are a type of parasitic worm that can be found in the gastrointestinal tract of their hosts (definitive hosts). Although most infections have been shown to occur in developing nations, these are widely distributed across the globe.
Jun 14, 2024 · Tapeworm, any member of the invertebrate class Cestoda (phylum Platyhelminthes), a group of parasitic flatworms containing about 5,000 species. Tapeworms, which occur worldwide and range in size from about 1 mm (0.04 inch) to more than 15 m (50 feet), are internal parasites, affecting certain.
Aug 28, 2023 · Cestodes are flat, parasitic, hermaphroditic tapeworms with complex life cycles that infect animals, including humans. Three cestodes that cause human disease are Taenia solium (pork tapeworm), Taenia saginata (beef tapeworm), and Diphyllobothrium (fish tapeworm).
Sep 13, 2023 · ABSTRACT. Adult cestode tapeworms have a flattened body composed of the scolex, bearing the fixation organs such as suckers, hooks, and bothria; the neck, where the cellular reproduction occurs; and the….
Cestodiasis, infestation with cestodes, a group of flattened and tapelike hermaphroditic worms that are intestinal parasites in humans and other animals, producing larvae that may invade body tissues. Learn about the different types of tapeworm infestations and their treatment in this article.
