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Seropositivity to Coxiella burnetii in primiparous and multiparous ewes from southern Australia: A cross-sectional study

Clune, T., Lockwood, A., Hancock, S.ORCID: 0000-0002-4115-4642, Thompson, A.N.ORCID: 0000-0001-7121-7459, Beetson, S., Bruce, M.ORCID: 0000-0003-3176-2094, Campbell, A.J., Glanville, E., Brookes, D., Trengove, C., O’Handley, R. and Jacobson, C.ORCID: 0000-0001-9427-1941 (2022) Seropositivity to Coxiella burnetii in primiparous and multiparous ewes from southern Australia: A cross-sectional study. Comparative Immunology, Microbiology and Infectious Diseases, 80 . Art. 101727.

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Abstract

The role of infectious diseases including coxiellosis in causing poorer reproductive performance of primiparous ewes are not well studied. The aims of this study were to determine if natural exposure to Coxiella burnetii is widespread in breeding ewes and whether seropositivity is associated with poor reproductive performance of primiparous ewes. Seropositivity to Coxiella burnetii was 0.08% (CI95% 0.01, 0.36) in primiparous ewes and 0.36% (CI95% 0.07, 1.14) in mature ewes. Coxiella burnetii was not detected in aborted or stillborn lambs using qPCR. These findings suggest C. burnetii infection was unlikely to be an important contributor to abortion and perinatal mortalities observed for primiparous ewe flocks, and exposure to C. burnetii was not widespread in ewes on farms located over wide geographical region of southern Australia. Whilst ewes on these farms were not an important reservoir for C. burnetii, sporadic zoonotic transmission from sheep is reported and has public health implications.

Item Type: Journal Article
Murdoch Affiliation(s): Centre for Animal Production and Health
Food Futures Institute
Publisher: Elsevier BV
Copyright: © 2021 The Authors.
URI: http://researchrepository.murdoch.edu.au/id/eprint/63255
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