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 virB4 mutant vaccine 2026-10-25T08:06:33Z 12081 Live attenuated Brucella abortus vaccine using live attenuated Brucella abortus virb4 mutant vaccine. Virb4 mutant did not induce abortion in pregnant mice. Infection with the virb4 mutant did not induce transient ifn-gamma production during placental development. PMID:15869716 VaxAgent Jie Zheng vaccine VIOLIN: https://violinet.org/vaxquery/vaccine_detail.php?c_vaccine_id=12081 live attenuated vaccine role