A Case of Coenurosis in a Wild Rabbit (Lepus sinensis) Caused by Taenia serialis Metacestode in Qinghai Tibetan Plateau Area, China

Zhang, Xueyong; Jian, Yingna; Ma, Liang; Li, Xiuping; Karanis, Panagiotis

doi:10.3347/kjp.2018.56.2.195

Cited by 6 publications

(6 citation statements)

References 12 publications

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Section: Discussionmentioning

confidence: 80%

“…Given the rich diversity and the large rodent population in western China and the few published reports of tapeworms in rodents, except for Taeniidae ( Xiao et al, 2005 ; Zhao et al, 2014 ; Wang et al, 2018 ; Zhang et al, 2018 ; Wu et al, 2021 ), the present knowledge of tapeworm biodiversity in rodents in western China suggests far greater biodiversity yet to be uncovered.…”

Section: Discussionmentioning

confidence: 97%

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Expansion of Cyclophyllidea Biodiversity in Rodents of Qinghai-Tibet Plateau and the “Out of Qinghai-Tibet Plateau” Hypothesis of Cyclophyllideans

Dai

et al. 2022

Front. Microbiol.

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The Cyclophyllidea comprises the most species-rich order of tapeworms (Platyhelminthes, Cestoda) and includes species with some of the most severe health impact on wildlife, livestock, and humans. We collected seven Cyclophyllidea specimens from rodents in Qinghai-Tibet Plateau (QTP) and its surrounding mountain systems, of which four specimens in QTP were unsequenced, representing “putative new species.” Their complete mitochondrial (mt) genomes were sequenced and annotated. Phylogenetic reconstruction of partial 28S rDNA, cox1 and nad1 datasets provided high bootstrap frequency support for the categorization of three “putative new species,” assigning each, respectively, to the genera Mesocestoides, Paranoplocephala, and Mosgovoyia, and revealing that some species and families in these three datasets, which contain 291 species from nine families, may require taxonomic revision. The partial 18S rDNA phylogeny of 29 species from Taeniidae provided high bootstrap frequency support for the categorization of the “putative new species” in the genus Hydatigera. Combined with the current investigation, the other three known Taeniidae species found in this study were Taenia caixuepengi, T. crassiceps, and Versteria mustelae and may be widely distributed in western China. Estimates of divergence time based on cox1 + nad1 fragment and mt protein-coding genes (PCGs) showed that the differentiation rate of Cyclophyllidea species was strongly associated with the rate of change in the biogeographic scenarios, likely caused by the uplift of the QTP; i.e., species differentiation of Cyclophyllidea might be driven by host-parasite co-evolution caused by the uplift of QTP. We propose an “out of QTP” hypothesis for the radiation of these cyclophyllidean tapeworms.

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Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 97%

Expansion of Cyclophyllidea Biodiversity in Rodents of Qinghai-Tibet Plateau and the “Out of Qinghai-Tibet Plateau” Hypothesis of Cyclophyllideans

Dai

et al. 2022

Front. Microbiol.

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“…Coenurosis is a group of zoonotic diseases caused by the metacestode larval stage of T. multiceps, T. serialis , and T. brauni [3,7,8]. The intermediate hosts, including humans and grazing animals such as cattle, sheep, goats, and rabbits, ingested the eggs in contaminated fruits, vegetables and grass, shed by the definitive hosts (dog, fox, and wolf).…”

Section: Discussionmentioning

confidence: 99%

Coenurosis of Yak, Bos grunniens, caused by Taenia multiceps: A Case Report with Molecular Identification in Qinghai Tibetan Plateau Area, China

et al. 2019

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Coenurosis is an important zoonotic helminthic disease caused by the larval stage of the tapeworm Taenia multiceps. This parasite typically infects the brain of the intermediate hosts, including sheep, goat, cattle and even humans. We report a case of T. multiceps infection in a yak confirmed by clinical symptoms, morphological characteristics, and molecular and phylogenetic analyses. The coenurus was thin-walled, whitish, and spherical in shape with a diameter of 10 cm. The parasite species was identified as T. multiceps by PCR amplification and sequencing of the 18S rRNA, cox1 and nad1 genes. Three gene sequences all showed high homology (all above 97%) with the reference sequences from different hosts. Moreover, phylogenetic reconstructions with the 3 published Taenia gene sequences confirmed that the Qinghai yak isolate was closely related to T. multiceps. Although there are advanced diagnosis and treatment methods for coenurosis, early infection is difficult to diagnose. Importantly, the findings of yak infection case should not be ignored due to its zoonotic potential.

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“…Other taeniid cestodes associated with lagomorphs and rodents as intermediate hosts, and dogs and cats as definitive hosts, are Taenia serialis and Taenia brauni (Cyclophyllidea: Taeniidae) [ 125 , 126 ], which are prevalent in hunting and stray dogs and in cats, in rural areas [ 126 ]. Usually, humans become infected after ingesting eggs from the environment, causing subcutaneous or ocular coenurosis, as reported in many cases in Africa [ 127 , 128 ].…”

Section: Tapeworms In Prey: Cestode Diseases Associated To Predationmentioning

confidence: 99%

Zoonotic parasites associated with predation by dogs and cats

Roldan

Otranto

2023

Parasites Vectors

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One of the most common behaviors of cats that have an indoor/outdoor lifestyle is to bring hunted “gifts” to their owners, represented by small mammals, reptiles and birds. Access to the outdoors by dogs and cats may represent a problematic issue, since they may be at risk of diseases, traffic accidents and ingestion of toxins. Yet, the impact of this population of roaming dogs and cats predating wildlife is another concerning issue that receives less attention. Despite these risks, most owners still prefer to give outdoor access to their pets to allow them to express their “natural instincts,” such as hunting. Therefore, with a growing population of > 470 million dogs and 373 million cats worldwide, predation not only represents a threat to wildlife, but also a door of transmission for parasitic diseases, some of them of zoonotic concern. In this review, the role played by dogs, and especially cats, in the perpetuation of the biological life cycle of zoonotic parasites through the predation of rodents, reptiles and birds is discussed. Feral and domestics dogs and cats have contributed to the population collapse or extinction of > 63 species of reptiles, mammals and birds. Although the ecological impact of predation on wild populations is well documented, the zoonotic risk of transmission of parasitic diseases has not received significant attention. The parasitic diseases associated to predation vary from protozoan agents, such as toxoplasmosis, to cestodes like sparganosis and even nematodes such as toxocariasis. Raising awareness about predation as a risk of zoonotic parasitic infections in dogs and cats will aid to create responsible ownership and proper actions for controlling feral and free-roaming cat and dog populations worldwide. Graphical Abstract

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A Case of Coenurosis in a Wild Rabbit (Lepus sinensis) Caused by Taenia serialis Metacestode in Qinghai Tibetan Plateau Area, China

Cited by 6 publications

References 12 publications

Expansion of Cyclophyllidea Biodiversity in Rodents of Qinghai-Tibet Plateau and the “Out of Qinghai-Tibet Plateau” Hypothesis of Cyclophyllideans

Expansion of Cyclophyllidea Biodiversity in Rodents of Qinghai-Tibet Plateau and the “Out of Qinghai-Tibet Plateau” Hypothesis of Cyclophyllideans

Coenurosis of Yak, Bos grunniens, caused by Taenia multiceps: A Case Report with Molecular Identification in Qinghai Tibetan Plateau Area, China

Zoonotic parasites associated with predation by dogs and cats

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