Seroconversion and abortion in cattle experimentally infected with Brucella sp. isolated from a Pacific harbor seal (Phoca vitulina richardsi).
J Vet Diagn Invest
; 13(5): 379-82, 2001 Sep.
Article
em En
| MEDLINE
| ID: mdl-11580057
ABSTRACT
Previously unrecognized Brucella species have been isolated from a number of marine mammals, including harbor seals (Phoca vitulina richardsi) in the Puget Sound area of the state of Washington. Because of the presence of dairy herds in proximity to the harbor seal populations, a study was conducted to determine the effects of the harbor seal Brucella isolate in experimentally inoculated cattle. Six pregnant cattle were exposed by intravenous injection (n = 3) or intraconjunctival inoculation (n = 3). Two pregnant cows were intravenously injected with saline and served as controls. All of the cows receiving the Brucella seroconverted on 1 or more tests commonly used for the detection of Brucella abortus infection. Two of the cattle receiving the intravenous inoculation aborted, and brucellae were demonstrated in the fetuses and dams immediately following abortion. The remaining 4 Brucella-inoculated animals and their fetuses were culture negative for the organism at 14 weeks postinoculation. Results of this study indicate the marine mammal Brucella is capable of producing seroconversion and abortion in cattle but is less pathogenic in that species than B. abortus.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Brucella abortus
/
Brucelose Bovina
/
Transmissão de Doença Infecciosa
/
Aborto Animal
/
Focas Verdadeiras
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
Limite:
Animals
/
Pregnancy
Idioma:
En
Revista:
J Vet Diagn Invest
Assunto da revista:
MEDICINA VETERINARIA
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Estados Unidos