What causes Cestodiasis?
What causes Cestodiasis?
The most common infections result from undercooked fish (Diphyllobothrium latum), beef (Taenia saginata), and pork (Taenia solium). Other tapeworms can be spread person-to-person (Hymenolepsis nana) or with contamination of food by feces from infected dogs (Echinococcus species).
Which parasite causes cestodiasis?
cestodiasis, also called tapeworm infestation, 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.
What are the general characteristics of Cestodes?
Cestodes, commonly called tapeworms, are the taxonomic class of Cestoda, which are parasitic worms. They have a tape-like and segmented body. These animals are hermaphroditic, lack a digestive tract, and do not have a body cavity.
Where are Cestodes found?
intestine
Cestodes reside in the intestine of the definitive vertebrate host and the larvae stage(s) are found in the bodies of the intermediate host(s), which can be both invertebrates and/or vertebrates. Cestodes mainly cause gastrointestinal problems, but can migrate into the brain and liver (Siles-Lucas and Hemphill, 2002).
How is trematode infection acquired?
People become infected by eating raw fish, crustaceans or vegetables that harbour the parasite larvae. Foodborne trematodiases are most prevalent in East Asia and South America. Foodborne trematode infections result in severe liver and lung disease.
What is the meaning of Taeniasis?
Definition of taeniasis : infestation with or disease caused by tapeworms.
How do you control cestodes?
For all the intestinal cestodes (tapeworm infections) there is no effective prophylactic treatment or vaccine. Good sanitation and thorough cooking of meat and fish are the primary prevention measures.
How do the larval forms of the trematodes and the cestodes differ?
Cestodes are tape-like and segmented in shape, have a head with suckers and possibly hooks, and lack a digestive tract. Trematodes are leaf-like and unsegmented, lack hooks entirely, and have an incomplete digestive tract.
What is a Cestodes infection?
Adult cestodes are often acquired by ingestion of meat from intermediate hosts. Extraintestinal infection with larvae results from ingestion of eggs of fecal origin. Diagnosis of infection with adult cestodes is based on identification of eggs and segments (proglottides) in feces.
What are the other worms under Cestodes group?
Tapeworms (Cestodes) The three common types of tapeworms are Taenia solium, found in pork; Taenia saginata, found in beef; and Diphyllobothrium latum, found in fish.
What is cestodiasis in humans?
Cestodiasis, also called Tapeworm Infestation, 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.
What are visceral and somatic infections of cestodiasis?
Visceral and somatic cestodiasis include the following infections: (1) Echinococcosis, or hydatic disease, is caused by the larval stage of Echinoccocus granulosus or E. multilocularis.
What are the symptoms of intestinal cestodiasis?
Symptoms of intestinal cestodiasis include abdominal pain that may be relieved by eating and that may be associated with distention, flatulence, and nausea. Often, however, there are no symptoms, and first notice of infestation may occur only when segments of the worms are passed in the stools.
What is the most common cestode infection?
Perhaps the most commonly diagnosed cestode is Taenia saginata, the beef tapeworm, contracted from eating raw or undercooked beef. Infection is particularly common in Africa but occurs worldwide. Patients are usually asymptomatic but may occasionally describe vague abdominal discomfort.
