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Taeniasis is an infection within the intestines by adult tapeworms belonging to the genus Taenia. [6] [7] It is due to eating contaminated undercooked beef or pork. [6] There are generally no or only mild symptoms. [6] Symptoms may occasionally include weight loss or abdominal pain. [8] Segments of tapeworm may be seen in the stool. [8]
For example, praziquantel is an effective treatment for tapeworm infection, and is preferred over the older niclosamide. [39] While accidental tapeworm infections in developed countries are quite rare, such infections are more likely to occur in countries with poor sanitation facilities or where food hygiene standards are low.
Cysticercosis is a tissue infection caused by the young form of the pork tapeworm. [6] [1] People may have few or no symptoms for years. [3] [2] In some cases, particularly in Asia, solid lumps of between one and two centimeters may develop under the skin. [1] After months or years, these lumps can become painful and swollen and then resolve.
Dwarf tapeworm (Hymenolepis nana, also known as Rodentolepis nana, Vampirolepis nana, Hymenolepis fraterna, and Taenia nana) is a cosmopolitan species though most common in temperate zones, and is one of the most common cestodes (a type of intestinal worm or helminth) infecting humans, especially children.
Dipylidium life cycle. Dipylidium caninum, also called the flea tapeworm, double-pored tapeworm, or cucumber tapeworm (in reference to the shape of its cucumber-seed-like proglottids, though these also resemble grains of rice or sesame seeds) is a cyclophyllid cestode that infects organisms afflicted with fleas and canine chewing lice, including dogs, cats, and sometimes human pet-owners ...
Cyclophyllidea (the cyclophyllid cestodes) is the order of Cestoda (tapeworm).It is the largest and most diverse order of Cestoda (tapeworm), encompassing species that infect all classes of terrestrial tetrapods including humans and domesticated animals, [1] and includes species with some of the most severe health impact on wildlife, livestock, and humans.
Generally infection is asymptomatic, and there are no reports of clinical disease. It is considered as the least pathogenic species of Raillietina. However, under heavy loads of experimental infections, pathological symptoms include degeneration of epithelial cells, enteritis, and macrophage infiltration of lymphocyte. [3] [6]
The most common infection is through ingestion of contaminated vegetables, drinking water, and raw or undercooked meat. Contaminated food may contain eggs of nematodes such as Ascaris, Enterobius, and Trichuris; cestodes such as Taenia, Hymenolepis, and Echinococcus; and trematodes such as Fasciola.