Comparison of distribution pattern, pathogenesis and molecular characteristics of larval stages of Taenia multiceps in sheep and goats

Oryan, Ahmad; Moazeni, Mohammad; Amrabadi, Omidreza; Akbari, Maryam; Sharifiyazdi, Hassan

doi:10.1016/j.smallrumres.2015.10.008

Cited by 27 publications

(25 citation statements)

References 21 publications

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“…Molecular characterization by PCR shows positive result for cerebral cysts in the naturally and experimentally infected sheep and goats, by producing the expected fragments for COX-1 and NAD1 genes. Sequence analysis showed that the sheep and goats samples examined in the naturally and experimentally infected samples are 100% identical to each other and 100% similar to adult worms recovered from dogs based on both mitochondrial markers (Oryan et al, 2015).…”

Section: Diagnosismentioning

confidence: 90%

“…Human can get infected with this parasite if accidentally ingest the egg of the parasite (Sharma and Chauhan, 2006;Lescano and Zunt, 2013;Oryan et al, 2015).…”

Section: Host Rangementioning

confidence: 99%

“…There are more than 100 reports of human infection with these metacestodes. The cerebral coenurosis create serious problems and even death in patients (Oryan et al, 2015).…”

Section: Zoonotic Importance Of Cerebral Coenurosismentioning

confidence: 99%

“…Coenurus cerebralis, is the metacestode or larval form of the dog tapeworm Taenia multiceps, causes cerebral coenurosis, also known as gid or stagger (Oryan et al, 2015). C. cerebralis causes a serious problem in sheep production (Scala et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Cerebral Coenurosis in Small Ruminants: A Review

Abera

Wubit

Nejash

2016

J. Anim. Sci. Adv.,

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Cerebral coenurosis is an important disease affecting sheep and goat which causes significant economic losses in their production. Cerebral Coenurosis is caused by larval stage of taenia multiceps known as coenurus cerebralis. The aim of this paper is to review the general aspects of cerebral coenurosis in small ruminants' and highlight its economic and public health significance. Coenurosis occurs in worldwide and it is endemic in Ethiopia, especially in the highland area where sheep population is high. The life cycle is commonly happens between dog and small ruminants. The adult stage of this parasite inhabits the small intestine of dogs, foxes, coyotes and jackals; while larvae are found in the brain and spinal cord of intermediate hosts. When dog consume the brain containing coenurus cyst, cyst develop into taenia multiceps and then start to pass proglottid containing egg on pasture and intermediate hosts get infected when ingest eggs from pasture. Circling, Dullness, torticollis, loss of appetite, frequent bleating, separation from the flock, visual impairment, muscle tremors are the main clinical signs related with coenurusis. Diagnosis is mostly by necrosy while radiology, ultrasonography and CT can also be used. Treatment of choice is by surgical removal of the cyst or by aspiration of fluid from the cyst; also combination of Fenbendazole, praziquantel and albendazole is effective against migratory stage of the larvae. The disease causes great economic loss in small ruminant production. Human get infected with coenurosis if ingests an egg of the parasite accidentally. Regular anthelmintic treatment of dogs, correct disposal of sheep and goat brain are the main control method of coenurosis. The community should Control dog contact with pasture and have to properly dispose the brain of infected sheep and goats after slaughter; also they should keep their hygiene to prevent ingestion of T. multiceps eggs.

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Section: Diagnosismentioning

confidence: 90%

“…Human can get infected with this parasite if accidentally ingest the egg of the parasite (Sharma and Chauhan, 2006;Lescano and Zunt, 2013;Oryan et al, 2015).…”

Section: Host Rangementioning

confidence: 99%

“…There are more than 100 reports of human infection with these metacestodes. The cerebral coenurosis create serious problems and even death in patients (Oryan et al, 2015).…”

Section: Zoonotic Importance Of Cerebral Coenurosismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cerebral Coenurosis in Small Ruminants: A Review

Abera

Wubit

Nejash

2016

J. Anim. Sci. Adv.,

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“…Cerebral coenurosis refers to the occurrence of C. cerebralis in the brain and spinal cord, is common in a wide range of livestock, particularly sheep and goats but rarely reported in cattle (GIADINIS et al, 2007(GIADINIS et al, , 2009. Cerebral coenurosis is mostly associated with neurological disorders (ORYAN et al, 2015;SHARMA & CHAUHAN, 2006). The severity of the disease depends on the location and the space occupied by the cyst, and the associated neuropathological lesions (ACHENEF et al, 1999;SHIVASHARANAPPA et al, 2017).…”

Section: First Report Of An Outbreak Of Cerebral Coenurosis In Dhofarmentioning

confidence: 99%

First report of an outbreak of cerebral coenurosis in Dhofari goats in Oman

El-Neweshy

Khalafalla

Ahmed

et al. 2019

Rev. Bras. Parasitol. Vet.

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This study documented the first outbreak of cerebral coenurosis in goats in Salalah, southern Oman. Deaths of 130 (16.6%) adult native goats in a herd (n=780) were reported from January to June 2017. Affected goats showed various nervous signs ended by death. Investigations for thiamine deficiency, polioencephalomalacia, caprine arthritis encephalitis, and listeriosis were negative. Upon necropsy, multiple (1-4) thin-walled cysts 2-3.5 cm in diameter containing clear fluid with numerous clusters of protoscolices in the cerebrum and cerebellum had replaced the brain parenchyma, causing space-occupying lesions. Parasitologically, the recovered cysts were Coenurus cerebralis, based on the arrangement of protoscolices, and the number and size of their hooks. Morphologically, each protoscolex had four suckers and a rostellum with double-crown hooks. The large and small hooks were 157.7±0.5 µm and 115±0.6 µm in length, respectively. Histopathologically, the parasite destroyed the affected tissues associated with multifocal to diffuse lymphocytic, non-suppurative meningoencephalitis; ischemic neuronal necrosis; and malacia. This is the first report of cerebral coenurosis in livestock in Oman, which should alert the local public health authorities for the application of prevention and control measures.

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Nervous System

2022

Goat Medicine

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Comparison of distribution pattern, pathogenesis and molecular characteristics of larval stages of Taenia multiceps in sheep and goats

Cited by 27 publications

References 21 publications

Cerebral Coenurosis in Small Ruminants: A Review

Cerebral Coenurosis in Small Ruminants: A Review

First report of an outbreak of cerebral coenurosis in Dhofari goats in Oman

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