In the tonsillar crypts the diphtheria bacilli were usually more numerous than in the adenoids. Two of the 12 strains were virulent; one showed attenuated virulence; three were pathogenic in large ...

Preisz-Nocard is a diphtheroid bacillus, presenting interesting characteristics as follows ... resembling but not identical with that of diphtheria, yet being neutralized partly by diphtheria ...