Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/30254
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dc.contributor.authorLakew, Biniam Ten
dc.contributor.authorKheravii, Sarbast Ken
dc.contributor.authorWu, Shubiaoen
dc.contributor.authorEastwood, Steveen
dc.contributor.authorAndrew, Nigelen
dc.contributor.authorJenkins, Cherylen
dc.contributor.authorWalkden-Brown, Stephen Wen
dc.date.accessioned2021-03-23T02:27:46Z-
dc.date.available2021-03-23T02:27:46Z-
dc.date.issued2021-03-
dc.identifier.citationTicks and Tick-borne diseases, 12(2), p. 1-10en
dc.identifier.issn1877-9603en
dc.identifier.issn1877-959Xen
dc.identifier.urihttps://hdl.handle.net/1959.11/30254-
dc.description.abstractBovine theileriosis, caused by the <i>Theileria orientalis</i> complex, causes a mild persistent infection with the severity dependent on the infecting genotype and host exposure status. Clinical theileriosis was first detected on the Northern Tablelands of NSW in 2009 and a high prevalence of infection in cattle reported in 2013. However, the parasite was not genotyped and likely vectors not investigated. In response to ongoing clinical cases, here we identify the <i>Theileria</i> genotypes present in the region and potential vectors. Genotype-specific multiplex qPCR of 90 blood samples from eight farms revealed a 100 % prevalence of <i>T. orientalis</i> in individual cattle with concurrent infection with all three genotypes present in 73 % of cases. The prevalence of the pathogenic genotype (Ikeda) differed significantly between farms; however, the level of parasitemia was not affected by genotype or associated with clinical disease. Parasitaemia levels were higher in heifers than cows. Questing tick collection on six of the farms between November 2017 and May 2019 yielded 358 questing ticks from one farm, all of which were morphologically identified as <i>Haemaphysalis bancrofti</i>. Larvae accounted for 59 % of the ticks followed by nymphs (34 %) and adults (7%). <i>Theileria</i> was detected only in nymphs with Ikeda and Buffeli genotypes each being detected in one of four pools of ticks. The high prevalence of co-infection with three genotypes of T. orientalis indicates that they are now endemic in the region and confirms the lack of cross-protection between genotypes. This is the first detection of <i>T. orientalis</i> in questing <i>H. bancrofti</i> ticks: indicating that it may be a vector for <i>T. orientalis</i> in this region. However, the high prevalence of bovine infection is at odds with the absence of captured ticks or history of tick infestation on five of the six farms raising the possibility that other vectors or transmission pathways play key roles.en
dc.languageenen
dc.publisherElsevier GmbHen
dc.relation.ispartofTicks and Tick-borne diseasesen
dc.titleEndemic infection of cattle with multiple genotypes of Theileria orientalis on the Northern Tablelands of New South Wales despite limited presence of ticksen
dc.typeJournal Articleen
dc.identifier.doi10.1016/j.ttbdis.2020.101645en
dc.identifier.pmid33388554en
local.contributor.firstnameBiniam Ten
local.contributor.firstnameSarbast Ken
local.contributor.firstnameShubiaoen
local.contributor.firstnameSteveen
local.contributor.firstnameNigelen
local.contributor.firstnameCherylen
local.contributor.firstnameStephen Wen
local.subject.for2008070205 Animal Protection (Pests and Pathogens)en
local.subject.seo2008839903 Livestock Product Traceability and Quality Assuranceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailblakew@myune.edu.auen
local.profile.emailsqassim2@une.edu.auen
local.profile.emailswu3@une.edu.auen
local.profile.emailnandrew@une.edu.auen
local.profile.emailswalkden@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeGermanyen
local.identifier.runningnumber101645en
local.format.startpage1en
local.format.endpage10en
local.identifier.scopusid85098635128en
local.peerreviewedYesen
local.identifier.volume12en
local.identifier.issue2en
local.contributor.lastnameLakewen
local.contributor.lastnameKheraviien
local.contributor.lastnameWuen
local.contributor.lastnameEastwooden
local.contributor.lastnameAndrewen
local.contributor.lastnameJenkinsen
local.contributor.lastnameWalkden-Brownen
dc.identifier.staffune-id:blakewen
dc.identifier.staffune-id:sqassim2en
dc.identifier.staffune-id:swu3en
dc.identifier.staffune-id:nandrewen
dc.identifier.staffune-id:swalkdenen
local.profile.orcid0000-0002-1790-6015en
local.profile.orcid0000-0002-2850-2307en
local.profile.orcid0000-0002-0638-5533en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/30254en
local.date.onlineversion2020-12-28-
dc.identifier.academiclevelStudenten
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleEndemic infection of cattle with multiple genotypes of Theileria orientalis on the Northern Tablelands of New South Wales despite limited presence of ticksen
local.relation.fundingsourcenoteSchool of Environmental and Rural Science, UNE; Meat and Livestock Australia (Project B.AHE.0324)en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorLakew, Biniam Ten
local.search.authorKheravii, Sarbast Ken
local.search.authorWu, Shubiaoen
local.search.authorEastwood, Steveen
local.search.authorAndrew, Nigelen
local.search.authorJenkins, Cherylen
local.search.authorWalkden-Brown, Stephen Wen
local.uneassociationYesen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.identifier.wosid000614464900007en
local.year.available2020en
local.year.published2021en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/ba78a9d4-0c73-460e-b02d-191523a7a3eaen
local.subject.for2020300304 Animal protection (incl. pests and pathogens)en
local.subject.for2020300909 Veterinary parasitologyen
local.subject.seo2020100401 Beef cattleen
local.subject.seo2020109904 Livestock product traceability and quality assuranceen
local.codeupdate.date2022-01-28T11:40:09.163en
local.codeupdate.epersonrtobler@une.edu.auen
local.codeupdate.finalisedtrueen
local.original.for2020300304 Animal protection (incl. pests and pathogens)en
local.original.seo2020109904 Livestock product traceability and quality assuranceen
Appears in Collections:Journal Article
School of Environmental and Rural Science
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