in these respects it likewise differs radically from the pneumococcus and streptococcus haemolyticus which do not possess these pathogenic properties as previous experiments have shown . ( 2 , 4 ) the bearing of these facts on the possible etiologic relation of bacillus influenzae to influenza is important , since they show that bacillus influenzae possesses certain definite primary pathogenic properties which distinguish it and therefore separate it from the group of recognized secondary organisms in influenzal complications , of which the pneumococcus and the streptococcus are the most frequent .
C0450254
pathogenic
C0029235
organisms