In Vitro Markers and Biological Activity in Mice of Seed Lot Strains and Commercial Brucella melitensis Rev 1 and Brucella abortus B19 Vaccines
- 30 June 2000
- journal article
- research article
- Published by Elsevier BV in Biologicals
- Vol. 28 (2), 119-127
- https://doi.org/10.1006/biol.2000.0249
Abstract
Four seed lots and fourteen batches of Brucella melitensis Rev 1 and B. abortus B19 living anti-Brucella commercial vaccines obtained from six Spanish laboratories were tested in vitro and in vivo in the reference mouse model for quality control. All the strains tested showed the characteristic morphology of their respective Rev 1 or B19 reference strains with the exception of three Rev 1 strains: seed lot SL2 and commercial vaccine R3, in which giant colonies were predominant, and commercial vaccine R5, in which 5% rough colonies were detected. Strains SL2 and R5 (but not the R3) had a deficient activity when tested in the mouse model. All strains but two (Rev 1 strain R1 and B19 strain B2) had standard resistance/ sensitivity patterns to streptomycin and penicillin G. Strains R1 and B2 had an increased resistance to penicillin when incubated in a 10% CO2 atmosphere and both strains showed an increased residual virulence in mice. As residual virulence and immunogenicity in mice were not always correlated one another nor with the in vitro tests, all tests should be performed to control properly the anti-Brucella live vaccines. A computerized statistical procedure to calculate the residual virulence of vaccines is proposed as an alternative to that used in the current method.Keywords
This publication has 12 references indexed in Scilit:
- The defect in the metabolism of erythritol of the Brucella abortus B19 vaccine strain is unrelated with its attenuated virulence in miceVaccine, 1998
- A review of the use of B. melitensis Rev 1 vaccine in adult sheep and goatsPreventive Veterinary Medicine, 1997
- Improvement of the Brucella abortus B19 vaccine by its preparation in a glycerol based mediumVaccine, 1996
- Brucella melitensis Rev. 1 living attenuated vaccine: Stability of markers, residual virulence and immunogenicity in miceBiologicals, 1991
- Brucella suis S2, Brucella melitensis Rev. 1 and Brucella abortus S19 living vaccines: residual virulence and immunity induced against three Brucella species challenge strains in miceVaccine, 1990
- The effect of reduced-dose Brucella abortus strain 19 vaccination in accredited dairy herdsBritish Veterinary Journal, 1985
- VACCINATION OF PREGNANT COWS WITH LOW DOSES OF BRUCELLA ABORTUS STRAIN 19 VACCINEAustralian Veterinary Journal, 1980
- Le contrôle des vaccins antibrucelliques par dénombrement des Brucella dans la rate de souris, vaccinées ou non, inoculées par voie intrapéritonéaleJournal of Biological Standardization, 1977
- Transformation normalisant la distribution du nombre de Brucella dans la rate de souris inoculées par voie intrapéritonealeJournal of Biological Standardization, 1976
- Rev. 1 Brucella melitensis vaccineJournal of Comparative Pathology, 1967