RESUMO
Brucella abortus is the etiological agent of bovine brucellosis. The strain 19 used in vaccine elaboration can be identified through a deletion in the eri region associated with its susceptibility to erythritol. We optimized a PCR assay for specific characterization of this strain. The method described here is a rapid procedure that enables identification of B. abortus, and simultaneous differentiation of the strain 19 from other B. abortus biovar 1 strains. We applied the assay to detect the strain 19 in vaccines against B. abortus produced in Argentina. Thq results show this method could be used to follow vaccine seed cultures of this strain. The methodology could also contribute to reduce the risk of a laboratory-acquired infection and could be of great help as a routine test for confirmation of B. abortus in non related vaccines.
Assuntos
Técnicas de Tipagem Bacteriana/métodos , Vacina contra Brucelose , Brucella abortus/classificação , Brucelose Bovina/microbiologia , DNA Bacteriano/análise , Reação em Cadeia da Polimerase/métodos , Animais , Proteínas de Bactérias/genética , Proteínas de Bactérias/metabolismo , Brucella abortus/genética , Brucella abortus/metabolismo , Bovinos , DNA Bacteriano/genética , Eletroforese em Gel de Ágar , Eritritol/metabolismo , Sondas de Oligonucleotídeos , Fosfotransferases (Aceptor do Grupo Álcool)/genética , Fosfotransferases (Aceptor do Grupo Álcool)/metabolismoRESUMO
Brucella abortus es el agente etiológico de la brucelosis bovina. La cepa 19, utilizada en la elaboración de vacunas, puede ser identificada a través de una deleción en la región eri asociada con la sensibilidad al eritritol. Se optimizó un ensayo de PCR para caracterizar específicamente esta cepa. El método que describimos es un procedimiento rápido para identificar B. abortus y simultáneamente diferenciar la cepa 19 de otras cepas de B. abortus biovar 1. Hemos aplicado este ensayo para la detección de la cepa 19 en vacunas contra la brucelosis bovina elaboradas en Argentina. Los resultados indican que este método podría ser útil para el seguimiento de las cepas madres y semillas utilizadas en la producción industrial de esta vacuna. Esta metodología también contribuiría a la reducción del riesgo de la infección adquirida en el laboratorio y podría aplicarse como prueba de rutina para confirmar la presencia de B. abortus en vacunas no relacionadas.
Brucella abortus is the etiological agent of bovine brucellosis. The strain 19 used in vaccine elaboration can be identified through a deletion in the eri region associated with its susceptibility to erythritol. We optimized a PCR assay for specific characterization of this strain. The method described here is a rapid procedure that enables identification of B. abortus, and simultaneous differentiation of the strain 19 from other B. abortus biovar 1 strains. We applied the assay to detect the strain 19 in vaccines against B. abortus produced in Argentina. The results show this method could be used to follow vaccine seed cultures of this strain. The methodology could also contribute to reduce the risk of a laboratory-acquired infection and could be of great help as a routine test for confirmation of B. abortus in non related vaccines.
Assuntos
Animais , Bovinos , Vacina contra Brucelose , Técnicas de Tipagem Bacteriana/métodos , Brucella abortus/classificação , Brucelose Bovina/microbiologia , DNA Bacteriano/análise , Reação em Cadeia da Polimerase/métodos , Proteínas de Bactérias/genética , Proteínas de Bactérias/metabolismo , Brucella abortus/genética , Brucella abortus/metabolismo , DNA Bacteriano/genética , Eletroforese em Gel de Ágar , Eritritol/metabolismo , Sondas de Oligonucleotídeos , Fosfotransferases (Aceptor do Grupo Álcool)/genética , Fosfotransferases (Aceptor do Grupo Álcool)/metabolismoRESUMO
Brucella abortus is the etiological agent of bovine brucellosis. The strain 19 used in vaccine elaboration can be identified through a deletion in the eri region associated with its susceptibility to erythritol. We optimized a PCR assay for specific characterization of this strain. The method described here is a rapid procedure that enables identification of B. abortus, and simultaneous differentiation of the strain 19 from other B. abortus biovar 1 strains. We applied the assay to detect the strain 19 in vaccines against B. abortus produced in Argentina. Thq results show this method could be used to follow vaccine seed cultures of this strain. The methodology could also contribute to reduce the risk of a laboratory-acquired infection and could be of great help as a routine test for confirmation of B. abortus in non related vaccines.
