Article: Epidemiology of Yersinia pseudotuberculosis and Y. enterocolitica infections in sheep in Australia

Infections with Yersinia pseudotuberculosis serotype III and Y. enterocolitica serotype O2,3 were found to be common in Australian sheep flocks. Transmission of Y. pseudotuberculosis occurred in late winter and early spring, while Y. enterocolitica transmission occurred from midwinter to early summer. Excretion of Y. pseudotuberculosis was limited to the winter and spring period and was particularly common in 1- and 2-year-old sheep. Infection persisted for up to 14 weeks. Y. pseudotuberculosis infection did not confer immunity to natural infection with Y. enterocolitica. Y. enterocolitica excretion occurred year-round, with the greatest prevalence being in summer and autumn. Infection persisted for up to 29 weeks. Sheep less than 1 year old were most commonly infected with Y. enterocolitica. Infection with either Y. pseudotuberculosis or Y. enterocolitica was rare in aged sheep. Restriction endonuclease analysis of Y. pseudotuberculosis serotype III from sheep, cattle, deer, and pigs showed that the bacterial isolates were genetically indistinguishable. Similarly, Y. enterocolitica isolates from sheep were indistinguishable from those isolated from goats and cattle.

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References

1.

Blackall P . Survey of the prevalence of Yersinia species in swine. Aust Vet J. 1977; 53(8):407. DOI: 10.1111/j.1751-0813.1977.tb07972.x. View

2.

Slee K, Button C . Enteritis in sheep and goats due to Yersinia enterocolitica infection. Aust Vet J. 1990; 67(11):396-8. DOI: 10.1111/j.1751-0813.1990.tb03024.x. View

3.

Jerrett I, Slee K, Robertson B . Yersiniosis in farmed deer. Aust Vet J. 1990; 67(6):212-4. DOI: 10.1111/j.1751-0813.1990.tb07763.x. View

4.

Fukushima H, Gomyoda M, Kaneko S . Mice and moles inhabiting mountainous areas of Shimane Peninsula as sources of infection with Yersinia pseudotuberculosis. J Clin Microbiol. 1990; 28(11):2448-55. PMC: 268204. DOI: 10.1128/jcm.28.11.2448-2455.1990. View

5.

Mair N . Yersiniosis in wildlife and its public health implications. J Wildl Dis. 1973; 9(1):64-71. DOI: 10.7589/0090-3558-9.1.64. View

6.

McSporran K, Hansen L, Saunders B, Damsteegt A . An outbreak of diarrhoea in hoggets associated with infection by Yersinia enterocolitica. N Z Vet J. 1984; 32(3):38-9. DOI: 10.1080/00480169.1984.35056. View

7.

Henderson T . Yersiniosis in deer from the Otago-Southland region of New Zealand. N Z Vet J. 1983; 31(12):221-4. DOI: 10.1080/00480169.1983.35039. View

8.

Wauters G . Carriage of Yersinia enterocolitica serotype 3 by pigs as a source of human infection. Contrib Microbiol Immunol. 1979; 5:249-52. View

9.

Slee K, Button C . Enteritis in sheep, goats and pigs due to Yersinia pseudotuberculosis infection. Aust Vet J. 1990; 67(9):320-2. PMC: 7158859. DOI: 10.1111/j.1751-0813.1990.tb07814.x. View

10.

Slee K, Brightling P, Seiler R . Enteritis in cattle due to Yersinia pseudotuberculosis infection. Aust Vet J. 1988; 65(9):271-5. PMC: 7159550. DOI: 10.1111/j.1751-0813.1988.tb16141.x. View

11.

THAL E . [Immune biological studies on Yersinia pseudotuberculosis (Synonym: Pasteurella pseudotuberculosis)]. Schweiz Arch Tierheilkd. 1966; 108(7):372-88. View

12.

Marshall R, Wilton B, Robinson A . Identification of Leptospira serovars by restriction-endonuclease analysis. J Med Microbiol. 1981; 14(1):163-6. DOI: 10.1099/00222615-14-1-163. View

Epidemiology of Yersinia Pseudotuberculosis and Y. Enterocolitica Infections in Sheep in Australia