First isolation of Haemophilus parasuis and other NAD-dependent Pasteurellaceae of swine from European wild boars

A. Olvera, M. Cerdà-Cuéllar, G. Mentaberre, E. Casas-Diaz, S. Lavin, I. Marco, V. Aragon

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Resum

Haemophilus parasuis is a colonizer of the upper respiratory tract of pigs and the etiological agent of Glässer's disease, which is characterized by a fibrinous polyserositis, meningitis and arthritis. Glässer's disease has never been reported in wild boar (Sus scrofa), although antibodies against H. parasuis have been detected. The goal of this study was to confirm the presence of this bacterium in wild boar by bacterial isolation and to compare the strains to H. parasuis from domesticated pigs. Therefore, nasal swabs from 42 hunted wild boars were processed for bacterial isolation and subsequent H. parasuis identification by specific PCR, biochemical tests and 16S rRNA gene sequencing. Two different strains of H. parasuis from two wild boars were isolated. These strains belonged to serotype 2 and were included by 16S rRNA gene sequencing and MLST analysis in a cluster with other H. parasuis strains of nasal origin from domestic pigs. During this study, Actinobacillus minor and Actinobacillus indolicus, which are NAD-dependent Pasteurellaceae closely related to H. parasuis, were also isolated. Our results indicate similarities in the respiratory microbiota of wild boars and domestic pigs, and although H. parasuis was isolated from wild boars, more studies are needed to determine if this could be a source of H. parasuis infection for domestic pigs. © 2007 Elsevier B.V. All rights reserved.
Idioma originalEnglish
Pàgines (de-a)182-186
RevistaVeterinary Microbiology
Volum125
DOIs
Estat de la publicacióPublicada - 15 de nov. 2007

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