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Analysis of a partial <jats:italic>nad1<\/jats:italic> gene sequence showed that the majority (<jats:italic>n<\/jats:italic> = 29) belonged to <jats:italic>E. granulosus<\/jats:italic> sensu stricto, four to <jats:italic>E. canadensis<\/jats:italic> G6\/7, and three to <jats:italic>E. ortleppi<\/jats:italic>. Eight of the 29 <jats:italic>E. granulosus<\/jats:italic> s.s. cysts contained protoscoleces; all other cysts were calcified and non-viable. This is the first report of the presence <jats:italic>E. ortleppi<\/jats:italic> from the Arabian Peninsula, a parasite that is typically transmitted via cattle. The results indicate widespread infection of camels with CE in eastern Saudi Arabia and an active role of camels in the lifecycles of at least <jats:italic>E. granulosus<\/jats:italic> s.s.. Complete <jats:italic>cox1<\/jats:italic> haplotype analysis of 21 <jats:italic>E. granulosus<\/jats:italic> s.s. isolates shows that the majority of variants circulating in eastern Saudi Arabia is distinct from but closely related to haplotypes from neighboring countries in the Middle East, which indicates the presence of this parasite in KSA for a longer period of time. All isolates of <jats:italic>E. granulosus<\/jats:italic> s.s. in this study belonged to the G1 cluster, although the G3 genotype has previously also been reported from the Middle East.<\/jats:p>","DOI":"10.1007\/s00436-021-07156-1","type":"journal-article","created":{"date-parts":[[2021,4,17]],"date-time":"2021-04-17T02:03:05Z","timestamp":1618624985000},"page":"2077-2086","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Three species of Echinococcus granulosus sensu lato infect camels on the Arabian Peninsula"],"prefix":"10.1007","volume":"120","author":[{"given":"Fahad A.","family":"Al-Hizab","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nouh S.","family":"Mohamed","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marion","family":"Wassermann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mahmoud A.","family":"Hamouda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abdelazim M.","family":"Ibrahim","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Waleed R.","family":"El-Ghareeb","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sherief M.","family":"Abdel-Raheem","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas","family":"Romig","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2284-9748","authenticated-orcid":false,"given":"Rihab A.","family":"Omer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,4,17]]},"reference":[{"key":"7156_CR1","doi-asserted-by":"publisher","first-page":"1375","DOI":"10.1016\/j.sjbs.2018.04.011","volume":"25","author":"AAS Abdel-Baki","year":"2018","unstructured":"Abdel-Baki AAS, Almalki E, Al-Qqarishy S (2018) Prevalence and characterization of hydatidosis in Najdi sheep slaughtered in Riyadh city, Saudi Arabia. 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