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Braz. j. microbiol ; Braz. j. microbiol;46(1): 271-277, 05/2015. tab, graf
Article de Anglais | LILACS | ID: lil-748259

RÉSUMÉ

Cats are often described as carriers of Pasteurella multocida in their oral microbiota. This agent is thought to cause pneumonia, conjunctivitis, rhinitis, gingivostomatitis, abscess and osteonecrosis in cats. Human infection with P. multocida has been described in several cases affecting cat owners or after cat bites. In Brazil, the cat population is approximately 21 million animals and is increasing, but there are no studies of the presence of P. multocida in the feline population or of human cases of infection associated with cats. In this study, one hundred and ninety-one healthy cats from owners and shelters in São Paulo State, Brazil, were evaluated for the presence of P. multocida in their oral cavities. Twenty animals were positive for P. multocida, and forty-one strains were selected and characterized by means of biochemical tests and PCR. The P. multocida strains were tested for capsular type, virulence genes and resistance profile. A total of 75.6% (31/41) of isolates belonged to capsular type A, and 24.4% (10/41) of the isolates were untypeable. None of the strains harboured toxA, tbpA or pfhA genes. The frequencies of the other genes tested were variable, and the data generated were used to build a dendrogram showing the relatedness of strains, which were clustered according to origin. The most common resistance profile observed was against sulfizoxazole and trimethoprim-sulphamethoxazole.


Sujet(s)
Animaux , Chats , État de porteur sain/médecine vétérinaire , Résistance bactérienne aux médicaments , Pasteurelloses/médecine vétérinaire , Pasteurella multocida/effets des médicaments et des substances chimiques , Pasteurella multocida/isolement et purification , Facteurs de virulence/génétique , Antibactériens/pharmacologie , Techniques de typage bactérien , Brésil , État de porteur sain/microbiologie , Tests d'agents antimicrobiens par diffusion à partir de disques , Bouche/microbiologie , Réaction de polymérisation en chaîne , Pasteurelloses/microbiologie , Pasteurella multocida/classification , Pasteurella multocida/génétique , Sérogroupe
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