CDC - DPDx - Taeniasis
Taeniasis is the infection of humans with the adult tapeworm of Taenia saginata, T. solium or T. asiatica. Humans are the only definitive hosts for these three species. Eggs or gravid proglottids are passed with feces ; the eggs can survive for days to months in the environment.
About Human Tapeworm | Human Tapeworm (Taeniasis) | CDC
2024年6月13日 · Taeniasis in humans is a parasitic infection caused by the tapeworm species Taenia saginata (beef tapeworm), Taenia solium (pork tapeworm), and Taenia asiatica (Asian tapeworm). Humans can become infected with these tapeworms by eating raw or undercooked beef (T. saginata) or pork (T. solium and T. asiatica). People with taeniasis may not know ...
Cysticercosis: Overview, Symptoms & Treatment - Cleveland Clinic
Cysticercosis is an illness you get when infected with the eggs of the parasite Taenia solium. The condition causes sacs of fluid (cysts) to form in your body, with symptoms that can include seizures.
Taeniasis/cysticercosis - World Health Organization (WHO)
2022年1月11日 · Ingested T. solium eggs develop to larvae (called cysticerci) in various organs of the human body. When they enter the central nervous system, they can cause neurological symptoms (neurocysticercosis), including epileptic seizures.
Taenia species - Learn About Parasites - Western College of …
Eggs of Taenia species are round to oval, measure approximately 30 to 35 µm in diameter and have a thick, radially striated shell. Each egg contains a hexacanth larva with six hooks, not all of which are visible in every egg.
How Human Tapeworm Spreads | Human Tapeworm (Taeniasis)
2024年5月3日 · Humans become infected with tapeworms when they eat raw or undercooked beef or pork containing infective cysticerci. Once inside humans, Taenia cysticerci migrate to the small intestine and mature to adult tapeworms, which produce segments and eggs that are passed in feces.
Taenia saginata - Introduction, Classification, History, Habitat ...
2023年1月26日 · Taenia saginata is a large zoonotic tapeworm causing intestinal taeniasis in humans. It is also known as the beef tapeworm. Infection is acquired orally by ingesting raw or undercooked beef containing the larvae (Cysticercus bovis) of the parasite.
Taeniasis | CDC Yellow Book 2024 - Centers for Disease Control …
Diagnosis is made by detecting eggs, proglottids (segments), or tapeworm antigens in the feces or on anal swabs. Differential diagnosis of Taenia spp. is based on morphology of the scolex and gravid proglottids.
Taenia solium; morphology, life cycle, pathogenesis, clinical …
2019年4月25日 · Eggs are similar to those of Taenia saginata. Each egg consists of two shells. The outer shell is thin, transparent and represents the remnant of yolk mass. The inner shell, also known as embryophore is brown, thick walled and radially striated. It encloses the embryo. The embryo measures 14-20 µm in diameter with hooklets.
Taeniasis - Microscopy Findings
The eggs of Taenia saginata and Taenia solium are indistinguishable morphologically (morphologic species identification will have to rely on the proglottids or scolices). The eggs are rounded, diameter 31 to 43 µm, with a thick radially striated brown shell.