{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T15:30:40Z","timestamp":1784302240214,"version":"3.55.0"},"reference-count":29,"publisher":"Cambridge University Press (CUP)","issue":"9","license":[{"start":{"date-parts":[[2018,7,6]],"date-time":"2018-07-06T00:00:00Z","timestamp":1530835200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[2019,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This study aimed to determine the prevalence and assemblages of <jats:italic>G<\/jats:italic><jats:italic>iardia duodenalis<\/jats:italic> present in Scottish beef and dairy cattle at different ages, to try to ascertain if cattle could play a role in the spread of zoonotic assemblages of <jats:italic>Giardia<\/jats:italic>. A total of 388 fecal samples (128 beef and 253 dairy, seven of unknown breed) were collected from 19 farms in Scotland. Samples were sub-divided by host age, 1, 2, 3, 4, 5 and 6, 7\u201324 and \u2a7e25 weeks. DNA was extracted and tested by PCR to detect <jats:italic>G. duodenalis<\/jats:italic> DNA. Of the 388 samples, 126 tested positive, giving an overall prevalence of 32.5%, with positive samples being observed in all age groups tested. The prevalence in dairy cattle was 44.7% (113\/235), which was significantly higher (<jats:italic>P<\/jats:italic> &lt; 0.001) than the prevalence in beef cattle 10.1% (13\/128). Sequence analysis demonstrated the presence of assemblage E (77.2%, sequence types E-S1\u2013E-S5), assemblage B (18.2%) and assemblage A (sub-assemblages AI-AII) (4.6%). These data demonstrate that <jats:italic>G. duodenalis<\/jats:italic> is found routinely in both dairy and beef cattle throughout Scotland; the presence of assemblages A and B also indicates that cattle may play a role in the spread of potentially zoonotic assemblages of <jats:italic>Giardia<\/jats:italic>.<\/jats:p>","DOI":"10.1017\/s0031182018001117","type":"journal-article","created":{"date-parts":[[2018,7,6]],"date-time":"2018-07-06T05:36:43Z","timestamp":1530855403000},"page":"1123-1130","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":31,"title":["Detection of potentially human infectious assemblages of <i>Giardia duodenalis<\/i> in fecal samples from beef and dairy cattle in Scotland"],"prefix":"10.1017","volume":"146","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3351-7319","authenticated-orcid":false,"given":"Paul 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