Otariodibacter oris and Bisgaardia genomospecies 1 isolated from infections in pinnipeds

We document the first associations of two recently described species of Pasteurellaceae bacteria with lesions in wild pinnipeds in rehabilitation. Samples were collected from nine lesions in four California sea lions (Zalophus californianus) and two Pacific harbor seals (Phoca vitulina) during necro...

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Bibliographic Details
Published in:Journal of Wildlife Diseases
Main Authors: Hansen, Mie Johanne, Bertelsen, Mads Frost, Delaney, Martha Ann, Fravel, Vanessa Ashley, Gulland, Frances, Bojesen, Anders Miki
Format: Article in Journal/Newspaper
Language:English
Published: 2013
Subjects:
Abscess
Animals
California
Fatal Outcome
Female
Male
Pasteurellaceae
Pasteurellaceae Infections
Phoca
Pinnipedia
Sea Lions
/dk/atira/pure/core/keywords/TheFacultyOfHealthScience
Faculty of Health and Medical Sciences
isgaardia
California sea lion
harbor seal
infection
Otariodibacter oris
pinnipeds
Phoca vitulina
Online Access:https://curis.ku.dk/portal/da/publications/otariodibacter-oris-and-bisgaardia-genomospecies-1-isolated-from-infections-in-pinnipeds(3b467c78-43e2-4d85-84a3-6bc87b6cac85).html
https://doi.org/10.7589/2012-11-281
Description
Summary:We document the first associations of two recently described species of Pasteurellaceae bacteria with lesions in wild pinnipeds in rehabilitation. Samples were collected from nine lesions in four California sea lions (Zalophus californianus) and two Pacific harbor seals (Phoca vitulina) during necropsy or admission examinations at a rehabilitation facility in northern California. Seven Pasteurellaceae isolates were identified using phenotypic tests and partial rpoB gene sequencing. Six strains of Otariodibacter oris were isolated from California sea lions. Otariodibacter oris was isolated in pure culture from four abscesses, an affected lymph node, and a bone lesion consistent with osteomyelitis. Otariodibacter oris was also cultured with Arcanobacterium phocae and β-hemolytic streptococci. A pure culture of Bisgaardia genomospecies 1 was obtained from an abscess in a harbor seal. This is the first time, to our knowledge, that O. oris has been associated with infection. Isolation of these bacteria in pure culture from abscesses and osteomyelitis strongly indicates a pathogenic potential of this organism. Likewise, the isolation of Bisgaardia genomospecies 1 in pure culture from an abscess in a harbor seal implies causality.

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