12/16/2023 0 Comments Gid in sheep![]() The disease is propagated by dogs, final host, consuming the brains of affected animals (sheep/goat) having cystic form of the worm (Amin et al., 2013). The intermediate stage, Coenurous cerebralis, develops in brain and spinal cord of sheep and goat on consuming the fodder soiled with dog’s faeces. The adult tapeworm reside in small intestine of dog, fox, jackal and other canines (Soulsby, 1986) and the disease is commonly found in caprine and ovine species. This disease is also known as coenuriasis or stagger. Gid (a disease of central nervous system) is caused by larval stage, Coenurus cerebralis, of adult tapeworm Taenia multiceps. 2C).Animal Production Research Institute, R.A.U, Pusa, Bihar 2B), and nad1 gene sequence (MK189454, Fig. multiceps based on the 18S rRNA gene sequence (MK189451, Fig. ![]() multiceps isolates constituting a branch, and confirmed that the Qinghai yak isolate was closely related to T. Phylogenetic reconstructions with the published 3 Taenia gene sequences showed that all T. In detail, the 18S rRNA, cox1, and nad1 genes from the isolate were 2,467 bp, 1,623 bp, and 894 bp in length, and the G+C contents of each gene were 55%, 30%, and 28%, respectively and the sequences of the fragments of 18S rRNA gene (MK189451), cox1 gene (MK189452) and nad1 gene (MK189454), which provided 99% homology to 18S rRNA gene of China isolate (GQ260089) and Japan isolate (AB731621), and 100% homology to cox1 gene of China isolate (JX535576), 99% homology to China isolate (GQ228818, FJ495086, JX50/4/5/6/7/8/9, JX50/4/5/7/8/9, JX53 and JX53/3/5), and 99% homology to nad1 gene of China isolate (GQ228818 and KC791). multiceps following the amplification of the fragments of 3 genes, which showed very high homology to the reference sequences when blasted against the NCBI database. Coenurosis has spread worldwide and is distributed extensively, including in Europe and the USA, and especially in developing countries in Africa and Asia, and results in serious socioeconomic losses to the livestock husbandry industry throughout the world. Coenurosis, also known as coenuriasis, ‘gid’ or ‘staggers’, can lead to pronounced intracranial pressure, resulting in headache, ataxia, hypermetria, head deviation, blindness, stumbling, paralysis and even death of the intermediate infected sheep, goat, cattle and even humans. The adult tapeworm inhabits the small intestine of its definitive host domestic and wild canids (dog, fox, and wolf), while the metacestode parasitizes in the brain or spinal cord of the intermediate hosts (sheep, goat, cattle, and human), and then it affects the central nervous system of the intermediate hosts. Taenia multiceps is an important zoonotic tapeworm and its larval form ( Coenurus cerebralis) is the causative agent of coenurosis (Cestoda, Teniidae Leske, 1780). Key words: Taenia multiceps, coenurosis, case report, molecular identification, Qinghai Tibetan Plateau Area Importantly, the findings of yak infection case should not be ignored due to its zoonotic potential. Although there are advanced diagnosis and treatment methods for coenurosis, early infection is difficult to diagnose. Moreover, phylogenetic reconstructions with the 3 published Taenia gene sequences confirmed that the Qinghai yak isolate was closely related to T. Three gene sequences all showed high homology (all above 97%) with the reference sequences from different hosts. multiceps by PCR amplification and sequencing of the 18S rRNA, cox1 and nad1 genes. The parasite species was identified as T. The coenurus was thin-walled, whitish, and spherical in shape with a diameter of 10 cm. ![]() ![]() multiceps infection in a yak confirmed by clinical symptoms, morphological characteristics, and molecular and phylogenetic analyses. This parasite typically infects the brain of the intermediate hosts, including sheep, goat, cattle and even humans. Coenurosis is an important zoonotic helminthic disease caused by the larval stage of the tapeworm Taenia multiceps.
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