What type of parasite is Diphyllobothriasis?
A fish tapeworm infection can occur when a person eats raw or undercooked fish that’s contaminated with the parasite Diphyllobothrium latum. The parasite is more commonly known as the fish tapeworm. This type of tapeworm grows in hosts such as small organisms in the water and large mammals that eat raw fish.
Which parasite causes megaloblastic anemia?
Untreated, fish tapeworm infection may cause the following: Megaloblastic anemia (anemia caused by vitamin B12 deficiency)
How do you know if you have Diphyllobothriasis?
What are the signs and symptoms of Diphyllobothrium infection? Most infections are asymptomatic. However symptoms can include abdominal discomfort, diarrhea, vomiting, and weight loss. Vitamin B12 deficiency leading to pernicious anemia may occur.
What causes Diphyllobothriasis?
Diphyllobothriasis is caused by ingestion of raw, undercooked, or unfrozen infected fish and subsequent intestinal infection. The main causative organisms are D latum and D nihonkaiense, but other Diphyllobothrium and similar species have also been reported as infecting agents, albeit much less frequently.
What causes Sparganosis?
Humans acquire sparganosis by either drinking water contaminated with infected copepods or consuming the flesh of an under-cooked second intermediate or paratenic host. Spargana can live up to 20 years in the human host.
How is sparganosis diagnosed?
Sparganosis is typically diagnosed following surgical removal of the worms, although the infection may also be diagnosed by identification of eosinophilia or identification of the parasite in a tissue specimen. If such biopsy and excision procedures are not feasible, the antisparganum ELISA test may be used.
Are tapeworms nematodes or Platyhelminthes?
Helminths – worms – are some of the world’s commonest parasites (see Ch. 86). They belong to two major groups of animals, the flatworms or Platyhelminthes (flukes and tapeworms) and the roundworms or Nematoda.
Can tapeworms cause anemia in cats?
Severe parasitism can cause anemia due to blood loss from the intestines where the worms attach themselves. The cat’s feces will appear black and tarry due to blood in the feces. If too much blood is lost, the cat can become anemic and may die if left untreated.
How is Diphyllobothriasis transmitted?
Diphyllobothrium latum (D. latum), which is the most common cause of diphyllobothriasis, also called the “fish tapeworm” or the “broad tapeworm,” is transmitted to humans by the ingestion of fish that harbor infectious larvae of the genus Diphyllobothrium causing a wide-ranging spectrum of disease and severity.
Where is Diphyllobothriasis found?
Diphyllobothriasis occurs in areas where lakes and rivers coexist with human consumption of raw or undercooked freshwater fish. Such areas are found in Europe, newly independent states of the former Soviet Union, North America, Asia, Uganda, Peru (because of ceviche), and Chile.
How are diphyllobothriid tapeworms acquired?
They are acquired by eating raw or undercooked freshwater fish. Treatment is with praziquantel. Recent research has led to the reclassification and renaming of the Diphyllobothriid tapeworms.
Can tapeworms cause sparganosis?
The tapeworms that cause sparganosis are present worldwide, but most human cases occur in Southeast Asia. In humans, larvae typically migrate to subcutaneous tissue or muscle and form slowly growing masses. Other sites, including the central nervous system, may be involved but are much less common.
What is Diphyllobothriasis in humans?
Diphyllobothriasis is infection with intestinal tapeworms of the family Diphyllobothriidae. They are acquired by eating raw or undercooked freshwater fish. Treatment is with praziquantel. Recent research has led to the reclassification and renaming of the Diphyllobothriid tapeworms.
How do you diagnose diphyllobothriasis in fish?
Diphyllobothriasis (Fish Tapeworm Infection) Diagnosis of diphyllobothriasis is by identification of characteristic operculated eggs or broad proglottids (tapeworm segments) in stool. CBC is done to check for anemia.