DIPHTHERIA 125 



Pseudo-diphtheria Bacillus, or Hoffman's Bacillus. 



— This organism was first described by Hoffman in 

 1888; it strongly resembles the bacillus of true diph- 

 theria, but is non-virulent. The pseudo-diphtheria 

 bacillus is said to be found in the throats of about 

 20 per cent of all healthy persons, while only 1 or 2 

 per cent harbor the Klebs-Loffler bacillus. 



