has role immunizes against disease immunizes against pathogen test in lab animal model brucellosis Mus musculus Brucella abortus vaccine in research role live attenuated Brucella abortus vaccine live attenuated Brucella abortus strain RB51 purD mutant vaccine 2026-10-25T08:06:33Z VaxAgent PMID:25546140 Jie Zheng 12233 Live attenuated Brucella abortus vaccine using mutants of RB51 strain with disrupted purd or purf genes were constructed and characterized. Immunization with purd mutant protected mice against virulent b. Abortus strain 544 challenge at a level similar to the parent RB51 strain. vaccine VIOLIN: https://violinet.org/vaxquery/vaccine_detail.php?c_vaccine_id=12233 live attenuated vaccine role