Angiostrongylus

Angiostrongylus
Rat lungworm
Systematics
Over trunk : Molting animals (Ecdysozoa) Trunk : Roundworms (Nematoda) Order : Strongylida Superfamily : Metastrongyloidea Family : Angiostrongylidae Genre : Angiostrongylus
Scientific name
Angiostrongylus
Kamensky, 1905

Angiostrongylus (Syn. Haemostrongylus (Railliet & Henry, 1907)) is a genus of nematodes which in the lung , the pulmonary artery , the right atrium or the Gekrösearterien parasitize of mammals or birds. The genus contains 21 species, two of which - the rat lungworm and A. costaricensis - are zoonotic in character. In all species, the final host excretes the first larva with the faeces and further development takes place in snails that function as intermediate hosts. The end host is infected through the intake of snails or indirectly through their excretions or stack hosts.

features

The representatives of Angiostrongylus have a well-trained, clearly set off from the body Begattungstasche with a terminal incision. Your belly-side ribs sit on a common strand. The rib of the back lobe of the mating bag is present and is often finely branched at the end. The gubernaculum is poorly developed or completely absent. The vulva and anus are not terminal. The anus is often covered with small papillae, the tail is rounded.

species

The genus includes 21 species, although the assignment of some is not certain:

• Angiostrongylus cantonensis - rat lungworm
• Angiostrongylus chabaudi
• Angiostrongylus costaricensis
• Angiostrongylus daskalovi
• Angiostrongylus dujardini
• Angiostrongylus felineus
• Angiostrongylus gubernaculatus
• Angiostrongylus lenzii
• Angiostrongylus mackerrasae
• Angiostrongylus malaysiensis
• Angiostrongylus morerai
• Angiostrongylus ryjikovi
• Angiostrongylus petrowi
• Angiostrongylus raillieti
• Angiostrongylus sandarsae
• Angiostrongylus schmidti
• Angiostrongylus sciuri
• Angiostrongylus siamensis
• Angiostrongylus sp.
• Angiostrongylus tateronae
• Angiostrongylus ten incertae sedis
• Angiostrongylus vasorum - French heartworm

Human infestation

Two types can cause human disease: Angiostrongylus cantonensis and Angiostrongylus costarinensis. Angiostrongylus cantonensis occurs in some areas of Asia. It can cause eosinophilic meningitis . Angiostrongylus costarinensis was discovered in Costa Rica , but is also found in Central America, South America, and the Caribbean . Rats, marmosets, and white-nosed coatis are the actual hosts. The worm eggs end up in freshwater crabs and crabs via sewage . The infection occurs predominantly through the consumption of poorly cooked crabs. The infection can simulate appendicitis

Individual evidence

1. ^ ^{A b} David M. Spratt: Species of Angiostrongylus (Nematoda: Metastrongyloidea) in wildlife: A review . In: International Journal for Parasitology: Parasites and Wildlife . tape 4 , no. 2 , 2015, p. 178-189 . Full text
2. ^ Roy Clayton Anderson, Alain Gabriel Chabaud, Sheila Willmott: Keys to the Nematode Parasites of Vertebrates: Archival volume . CABI, 2009, ISBN 978-1-84593-572-6 , pp. 201 .
3. ↑ Anna K Rubin, Kristine S Burk, Kyle Staller, Hiroko Kunitake, Gregory K Robbins, Vikram Deshpande: Case 30-2018: A 66-Year-Old Woman with Chronic Abdominal Pain . In: The New England Journal of Medicine . tape 379 , 2018, p. 1263-1272 , doi : 10.1056 / NEJMcpc1802831 .
4. ^ P Morera, R Neafie, A Marty: Angiostrongyliasis costaricensis. In: W Meyers, R Neafie, A Marty, D Wear (eds.): Pathology of infectious diseases. 1. Volume: Helminthiases, 2000, ISBN 1-881041-65-4 , pp. 385-396 .

Web links

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