Infected dogs may show a mucopurulent nasal discharge, epistaxis and sneezing, but infection may also be asymptomatic. The species linguatula serrata belongs to the pentastomida, a stillenigmatic group of wormlike, bloodsucking parasites that inhabit the upper respiratory tract of terrestrial, carnivorous vertebrates, mostly reptiles and birds. A single secondary pentastomid larva, most likely of linguatula serrata, was found in the anterior chamber of the right eye, attached loosely to the pupils border by a fibrinous mass. Linguatula serrata can be found in several countries in asia, southeast asia, the middle east, europe, north africa, and the americas. The parasite was identified as a linguatula serrata nymph based on in its morphological characteristics. Linguatula serrata a species most common in europe, but also found in the u. Phylogenetic relationships among linguatula serrata. The dog pictured, right donna had been imported from romania one week before signs started, by a rescue charity experiencing a kennel cough outbreak.
Seroprevalence of linguatula serrata infection among sheep. This parasitic worm a pentastome can grow to be 10cm in length. Linguatula serrata is a tongueshaped parasite that infects carnivores or insectivorous reptile as final host and herbivores as intermediate ones. Linguatulidae infection among clientowned dogs in jalingo, north eastern nigeria. The prevalence of linguatula serrata nymphs in mesenteric. Linguatula serrata is a parasitic worm that lives in the nose and sinuses of cats, dog, reptiles, birds and humans. The aim of the present study was to evaluate the occurrence and seroprevalence of l. We describe a case of ocular linguatulosis in central europe and provide molecular data on l. Literature search search for recent publications via cab abstract cabi log in required linguatula serrata publications. A zoonotic parasite, linguatula serrata, infection in a. A case of human infestation with linguatula serrata in a woman is described. Prevalence and morphological characterizations of linguatula. First molecular characterization of linguatula recurvata. It is proposed that inflammation associated with l serrata infestation may be a predisposing factor in the development of nasal cavity neoplasia.
Linguatula definition of linguatula by medical dictionary. Linguatula serrata learning resources flashcards test your knowledge using flashcard type questions crustacea flashcards. Life cycle of linguatula serrata 1 adults live in the nose of dogs and rarely of man. The aim of this study was to evaluate the prevalence of l. Abstract the phylogenetic relationships among seven linguatula serrata l. Pdf linguatula serrata is a zoonotic parasite causing visceral and nasopharyngeal linguatulosis in humans. The genus linguatula pentastomida is cosmopolitan and includes 6 species that have a higher prevalence in subtropical, tropical, and temperate regions. The most commonly reported species involved in linguatulosis is linguatula serrata family linguatulidae, order porocephalida, and phylum pentastomida, which is commonly classified between annelids and.
The most commonly reported species involved in linguatulosis is linguatula serrata family linguatulidae, order porocephalida, and phylum pentastomida, which is commonly classified between annelids and arthropods. Two cases of human infestation by larvae of linguatula serrata. Linguatula serrata is a foodborne zoonotic pentastomid that affects a wide range of animals including humans. The adult form of this parasite inhabits the nasal airway, frontal sinus, and tympanic cavity of canids and felids 7.
Case report of a tongue worm linguatula serrata in the. Prevalence of linguatula serrata infection among dogs. The clinical picture of the case was very puzzling and the attack lasted for 15 days. Cattle, sheep, goats, camels, rabbits, and other animals serve as intermediate hosts, in which fully developed.
Cats, dogs, foxes, and other carnivores are normal hosts of this parasite. Linguatula serrata is a cosmopolitan zoonotic parasite, belonging to the tongueworm order. Pdf linguatula serrata infestation in four imported dogs. The thin outer is left out in drawings, since it disappears soon. This is the first human case reported from greece so far.
This is the first report of nasal carcinoma with concurrent linguatulosis in a dog. Pdf tongue worms linguatula serrata or their eggs were found in one dog imported to austria and three dogs imported to germany. G anaraki mohammadi, i mobedi, m ariaiepour, z pourmohammadi, m zare bidaki. Associated conditions were iritis, subluxation of the lens, and secondary glaucoma. It causes pentastomiasis and respiratory tract disorder in reptiles or carnivorus and herbivorous mammals and rarely human. Linguatula serrata tongue worm in human eye, austria. We present a case of intraocular pentastomiasis in a 12yearold israel arab boy. Linguatula serrata is a cosmopolitan zoonotic parasite, belonging to the tongueworm order pentastomida. A oneyearold female neutered crossbreed dog was presented in february 2017 with a one week history of coughing, lethargy, and inappetence. A number of cases of tongue worm, linguatula serrata, in stray dogs imported into the uk have been brought to our attention recently. Apparently, almost any mammal is a potential intermediate host. Information about the openaccess article linguatula serrata porocephalida. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Only recently ashton, 2 in england, reported 24 cases of uveitis secondary to toxocara proven by histological study. They are wormlike parasites of the respiratory systems of vertebrates. Dog and other canines are the main definitive hosts while most of herbivores, including ruminants serve as intermediate hosts for linguatulosis. Tongue worm linguatula species in stray dogs imported. The examined dogs were divided into three age groups. Mahmoudian faculty of veterinary medicine, urmia university, urmia, iran abstract. The intermediate hosts of these parasites are usually sheep, cattle, or rodents. Molecular characterization and phylogeny of linguatula. Media in category linguatula serrata the following 10 files are in this category, out of 10 total. The adult worm lives in the nasal cavities and sinuses and.
Human can be infected by both the nymph stage, causing a disease condition called nasopharyngeal linguatulosis or halzoun syndrome and the egg, a condition called visceral linguatulosis. The late show with stephen colbert recommended for you. It occurs primarily in carnivores, although sheep and goats may become aberrant hosts. Trump gets extremely graphic in describing death of abu bakr albaghdadi duration. Linguatula serrata is a wormlike parasite which is usually. Vomiting and haemorrhagic diarrhoea began the day before presentation. Linguatula serrata is a zoonotic parasite causing visceral and nasopharyngeal linguatulosis in. Linguatula serrata definition of linguatula serrata by. It is uncommon in the uk and usa, but has a prevalence of over 40% in some middle eastern countries. Buccal cadre measurements were of buccal cadre length and buccal cadre width. Prevalence of linguatula serrata nymphs in goats slaughtered in. Prevalence of linguatula serrata infestation in stray dogs. Armillifer armillatus and armillifer moniliformis are endoparasites which feed on blood. The adult parasite is an elongated tongueshape with transverse striations and is found in the nasal cavities or sinuses of dogs, foxes.
The aim of this study was to evaluate the prevalence of nymphal stages of l. Linguatula serrata is one of wellknown members of pentastomida which infects both humans and animals. Linguatulosis is a condition associated with the organism linguatula serrata the usual final host for linguatula serrata is a carnivore, like a dog or jackal, and the species is sometimes known as the dog tongueworm for this reason more generally, linguatulosis can be considered a form of pentastomiasis, which refers to all diseases caused by pentastomids, including porocephaliasis. Characterisation of the tongue worm, linguatula serrata. Linguatula serrata, a cosmopolitan parasite, is commonly known as tongue worm belonging to the subclass pentastomida. Status of linguatula serrata infection in livestock. The aim of this study was to evaluate the prevalence of. Nasal carcinoma in a dog with linguatula serrata infection. The first page of the pdf of this article appears above. Human infestation by linguatula serrata, one of the family of linguatulids or so called tongueworms, is uncommon. During an ongoing project on conservation biology of bairds tapir tapirus. Linguatula serrata are commonly called tongue worm, due to its characteristic transparent tongueshaped, slightly convex, and ventrally flattened body structure. Linguatula serrata is a rare but highly specialized pentastomid parasite that shares some morphologic features with arthropods and annelids and causes infection when dogs consume uncooked ruminant meat containing infective larvae.
Linguatula serrata is a zoonotic parasite causing visceral and nasopharyngeal linguatulosis in humans. Linguatula serrata is an important zoonotic parasite at a global scale. Linguatula serrata by quauztemoctzin ramirez rembao on prezi. Nasal infestation by linguatula serrata in a dog in the uk. Most eggs observed in this case showed only 2 claws. Incidental thoracic, hepatic and peritoneal calcifications. Linguatulosis is a rare zoonotic parasitic disease resulting from invasion of the body by wormlike parasites of the genus linguatula, also known as tongue worms.
Linguatula serrata, the socalled tongue worm, is a wormlike, bloodsucking parasite belonging to the pentastomida group. The nucleotide sequences were analysed in order to. Some morphological data of various stages of linguatula. Linguatula serrata is a wellknown zoonotic parasite belonging to the order of pentastomida which infects both human and animals. Adult linguatula serrata were found in the nasal cavities of 89 62. Intraocular pentastomiasis causing unilateral glaucoma. Human infestation with linguatula serrata transactions. Cattle, sheep, goats, camels, rabbits, and other animals serve as intermediate hosts, in which fully. They have a screw like appearance and can reach up to 20 cm in length. Prevalence of linguatula serrata infection among dogs definitive host and domestic ruminants intermediate host in the north west of iran f. Pdf linguatula serrata nymph in a cat annahita rezaie.
A case report of nasopharyngeal linguatuliasis in tehran, iran and characterization of the isolated linguatula serrata. A practical treatise on urinary and renal diseases including urinary deposits 1879 14781278365. There was a significant relationship between age and infestation rate with l. Pdf some morphological data of various stages of linguatula. This view had to be changed when wilder, 1 in the histological study of pseudoglioma, found nematode larva. We collected the nymphal stage of the worm from mesenteric lymph nodes of cattle and identified these as l. A case report of nasopharyngeal linguatuliasis in tehran. The linguatula serrata is a tongueshaped parasite that infects carnivores or insectivorous reptile as final and herbivores as intermediate host. Visceral pentastomiasis in humans is caused by the larval stages nymphs of the arthropodrelated tongue worms linguatula serrata, armillifer armillatus, a. Linguatula serrata in an imported romanian street dog. The majority of cases has been reported from africa, malaysia, and the middle east, where visceral pentastomiasis may be an incidental finding in autopsies, and less often from china and. Depending on the position of the egg on a slide, only 2 claws may be visible arrow head. Linguatula an overview sciencedirect topics whipworms mar vista animal medical center study 18 terms bug flashcards quizlet. Parasitic infestation as an etiology of uveitis was seldom considered in the temperate climate zone prior to 1950.
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