"Bacterium abortus" Schmidt in Schmidt and Weis 1901 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Alphaproteobacteria order Hyphomicrobiales family Brucellaceae genus Brucella species Brucella abortus Name Homonyms Bacterium abortus "Bacterium abortus" Schmidt in Schmidt and Weis 1901