{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T14:23:33Z","timestamp":1791987813648,"version":"4.4.0"},"reference-count":39,"publisher":"Cambridge University Press (CUP)","issue":"5","license":[{"start":{"date-parts":[[2008,10,8]],"date-time":"2008-10-08T00:00:00Z","timestamp":1223424000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Epidemiol. Infect."],"published-print":{"date-parts":[[2009,5]]},"abstract":"<jats:title>SUMMARY<\/jats:title><jats:p>In Atlantic Canada, the traditional risk factor for acquisition of Q fever infection has been exposure to infected parturient cats or newborn kittens. In this study we describe the first case of Q fever in Nova Scotia acquired as a result of direct exposure to sheep. A serosurvey of the associated flock was undertaken using an indirect immunofluorescence assay (IFA) testing for antibodies to phase I and phase II<jats:italic>Coxiella burnetii<\/jats:italic>antigens. This serosurvey revealed that 23 of 46 sheep (50%) were seropositive for the phase II antibody. Four of these sheep had titres of 1:64 including three nursing ewes, one of which had delivered two lambs that died shortly after delivery. Only one ewe had phase I antibodies but had the study's highest phase II antibody titre (1:128). Molecular studies using polymerase chain reaction (PCR) failed to detect<jats:italic>C. burnetii<\/jats:italic>DNA in any of the milk specimens.<\/jats:p>","DOI":"10.1017\/s0950268808001404","type":"journal-article","created":{"date-parts":[[2008,10,8]],"date-time":"2008-10-08T09:12:19Z","timestamp":1223457139000},"page":"744-751","source":"Crossref","is-referenced-by-count":4,"title":["Ovine-associated Q fever"],"prefix":"10.1017","volume":"137","author":[{"given":"D.","family":"WEBSTER","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"HAASE","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T. 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