"Bacterium pyosepticum viscosum" Miessner 1921 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Pasteurellales family Pasteurellaceae genus Actinobacillus species Actinobacillus equuli Name Homonyms Bacterium pyosepticum viscosum "Bacterium pyosepticum viscosum" Miessner 1921