Global phylogeography and genetic diversity of the zoonotic tapeworm Echinococcus granulosus sensu stricto genotype G1

Kinkar, Liina; Laurimäe, Teivi; Acosta‐Jamett, Gerardo; Andresiuk, Vanessa; Balkaya, İbrahim; Casulli, Adriano; Gasser, Robin B.; Giessen, Joke van der; González, Luís Miguel; Haag, Karen Luisa; Zait, H.; Irshadullah, Malik; Jabbar, Abdul; Dj, Jenkins; Kia, Eshrat Beigom; Manfredi, Maria Teresa; Mirhendi, Hossein; M’rad, Selim; Rostami‐Nejad, Mohammad; Oudni-M’rad, Myriam; Pierangeli, Nora Beatriz; Ponce-Gordo, Francisco; Rehbein, Steffen; Sharbatkhori, Mitra; Şimşek, Sami; Soriano, Silvia Viviana; Sprong, Hein; Šnábel, Viliam; Umhang, Gérald; Varcasia, Antonio; Saarma, Urmas

doi:10.1016/j.ijpara.2018.03.006

Cited by 87 publications

(104 citation statements)

References 91 publications

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“…Keeping the distinction between genotypes may be necessary for phylogeographic studies and in some circumstances for echinococcosis control (targeting animal hosts and specific cycles) [38,41]. Best target for identification of G1 and G3 seems to be the nad5 gene region [39].…”

Section: G Genotypesmentioning

confidence: 99%

International consensus on terminology to be used in the field of echinococcoses

Vuitton¹,

et al. 2020

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Echinococcoses require the involvement of specialists from nearly all disciplines; standardization of the terminology used in the field is thus crucial. To harmonize echinococcosis terminology on sound scientific and linguistic grounds, the World Association of Echinococcosis launched a Formal Consensus process. Under the coordination of a Steering and Writing Group (SWG), a Consultation and Rating Group (CRG) had the main missions of (1) providing input on the list of terms drafted by the SWG, taking into account the available literature and the participants’ experience; and (2) providing independent rating on all debated terms submitted to vote. The mission of the Reading and Review Group (RRG) was to give an opinion about the recommendation paper in terms of readability, acceptability and applicability. The main achievements of this process were: (1) an update of the current nomenclature of Echinococcus spp.; (2) an agreement on three names of diseases due to Echinococcus spp.: Cystic Echinococcosis (CE), Alveolar Echinococcosis (AE) and Neotropical Echinococcosis (NE), and the exclusion of all other names; (3) an agreement on the restricted use of the adjective “hydatid” to refer to the cyst and fluid due to E. granulosus sensu lato; and (4) an agreement on a standardized description of the surgical operations for CE, according to the “Approach, cyst Opening, Resection, and Completeness” (AORC) framework. In addition, 95 “approved” and 60 “rejected” terms were listed. The recommendations provided in this paper will be applicable to scientific publications in English and communication with professionals. They will be used for translation into other languages spoken in endemic countries.

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Section: G Genotypesmentioning

confidence: 99%

International consensus on terminology to be used in the field of echinococcoses

Vuitton¹,

et al. 2020

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“…The E. granulosus s.s. G1 and G3 genotypes are much more closely related to each other than to any other known genotype. Therefore, the sequences of cox1 and nad1, which are most commonly used for typing, were too short to clearly identify our isolates as G1 and G3 [24,25]. Recently, successful differentiation of the G1 and G3 genotypes was achieved by using near-complete mitochondria genome sequences (11,443 bp) [10,25].…”

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confidence: 99%

“…Therefore, the sequences of cox1 and nad1, which are most commonly used for typing, were too short to clearly identify our isolates as G1 and G3 [24,25]. Recently, successful differentiation of the G1 and G3 genotypes was achieved by using near-complete mitochondria genome sequences (11,443 bp) [10,25]. However, we successfully classified our isolates as G1 and G3 by using only the cox1 sequences (and not nad1) along with confirmed G1 and G3 genotype reference sequences.…”

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confidence: 99%

“…However, we successfully classified our isolates as G1 and G3 by using only the cox1 sequences (and not nad1) along with confirmed G1 and G3 genotype reference sequences. We used the cox1 gene region from the near complete mitochondria genomes, whose genotypes were confirmed in a previous study [25]. The complete mitochondrial genome sequences have more phylogenetic information than the short sequences used in this study.…”

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confidence: 99%

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Phylogenetic Characteristics of Echinococcus granulosus Sensu Lato in Uzbekistan

et al. 2020

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Echinococcosis occurs mainly in areas with heavy livestock farming, such as Central Asia, America, and Australia. Echinococcus granulosus sensu lato (s.l.) infection causes echinococcosis in intermediate hosts, such as sheep, cattle, goats, camels, and horses. Numerous cases of echinococcosis occur in Uzbekistan as stock farming is a primary industry. Epidemiological and genetic studies of E. granulosus s.l. are very important for mitigating its impact on public health and the economy; however, there are no such studies on E. granulosus s.l. in Uzbekistan. In the present study, to determine which genotypes exist and are transmitted, we isolated Echinococcus sp. from definitive hosts (one isolate each from jackal and dog) and intermediate hosts (52 isolates from humans and 6 isolates from sheep) in Uzbekistan and analyzed the isolates by sequencing 2 mitochondrial DNA components (cox1 and nad1). The results showed that all of isolates except one belonged to the E. granulosus sensu stricto (s.s.) G1 and G3 genotypes. Phylogenetic analysis based on cox1 sequences showed that 42 isolates from humans, 6 isolates from sheep, and one isolate from jackal were the G1 genotype, whereas the remaining 8 isolates from human and the one isolate from dog were the G3 genotype. These results suggest that the G1 and G3 genotypes of E. granulosus s.s. are predominant in Uzbekistan, and both wild animals and domestic animals are important for maintaining their life cycle. Only one isolate from human sample was confirmed to be E. eqiinus (G4 genotype), which is known to be for the first time.

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“…They reported that the sheep strain is the most relevant strain related to humans (31) . Genotype G1 is the most prevalent genotype worldwide, possibly due to the wide range of intermediate hosts, which facilitates higher circulation in the environment (12,32) .…”

Section: Discussionmentioning

confidence: 99%

Use of PCR-RFLP for Genetic Characterization of Echinococcus Granulosusisolates From Egypt

Nassar

Elwakil

Eldin

et al. 2020

Ain Shams Medical Journal

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Global phylogeography and genetic diversity of the zoonotic tapeworm Echinococcus granulosus sensu stricto genotype G1

Cited by 87 publications

References 91 publications

International consensus on terminology to be used in the field of echinococcoses

International consensus on terminology to be used in the field of echinococcoses

Phylogenetic Characteristics of Echinococcus granulosus Sensu Lato in Uzbekistan

Use of PCR-RFLP for Genetic Characterization of Echinococcus Granulosusisolates From Egypt

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