Fatal leptospirosis in free-ranging Eurasian beavers (Castor fiber L.), Switzerland

Marreros Canales, Nelson Antonio; Zürcher, Samoa Micheline; Origgi, Francesco; Djelouadji, Zoheira; Wimmershoff, Julia; Pewsner, Mirjam; Akdesir, Ezgi; Batista Linhares, Mainity; Kodjo, Angeli; Ryser, Marie Pierre (2018). Fatal leptospirosis in free-ranging Eurasian beavers (Castor fiber L.), Switzerland. Transboundary and emerging diseases, 65(5), pp. 1297-1306. Blackwell 10.1111/tbed.12879

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Leptospirosis was first diagnosed in free‐ranging Eurasian beavers (Castor fiber L.) in Switzerland in 2010. Pathologic, serologic, molecular and epidemiologic analyses were carried out on 13 animals submitted for necropsy from 2010 through 2014. Typical lesions included alveolar haemorrhages in the lungs, tubular degeneration and interstitial nephritis in the kidneys. Microscopic agglutination test results were positive for serogroups Icterohaemorrhagiae, Australis, Autumnalis and Sejroe. Molecular analysis identified four distinct profiles belonging to serovar Icterohaemorrhagiae or Copenhageni. The severity and features of the lesions were consistent with a fatal disease associated with leptospires similarly to what has been reported in other animals and humans. The spatiotemporal occurrence of leptospirosis in beavers suggested an upstream spread of the bacteria and coincided with an increased incidence of leptospirosis in dogs and a case cluster in humans. However, an epidemiologic link among beaver cases and among species was not supported neither by the serologic nor molecular data.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP)
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Center for Fish and Wildlife Health (FIWI)

UniBE Contributor:

Marreros Canales, Nelson Antonio; Zürcher, Samoa Micheline; Origgi, Francesco; Wimmershoff, Julia; Pewsner, Mirjam; Akdesir, Ezgi; Batista Linhares, Mainity and Ryser, Marie Pierre

Subjects:

500 Science > 590 Animals (Zoology)
600 Technology > 610 Medicine & health
600 Technology > 630 Agriculture

ISSN:

1865-1682

Publisher:

Blackwell

Language:

English

Submitter:

Nelson Antonio Marreros Canales

Date Deposited:

26 Apr 2018 10:09

Last Modified:

29 Sep 2018 01:31

Publisher DOI:

10.1111/tbed.12879

PubMed ID:

29673086

Uncontrolled Keywords:

Eurasian beaver, leptospirosis, molecular typing, pathology, serology, Switzerland

BORIS DOI:

10.7892/boris.114851

URI:

https://boris.unibe.ch/id/eprint/114851

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