49 2 



Diphtheria 



nary hypodermic syringe; those of lower strength, of which 

 a larger quantity is required, must be given with a special 

 " antitoxin syringe." The syringe should always be care- 

 fully sterilized by boiling, and the packings, etc., found to 

 be in good condition before it is filled with antitoxin. 



BACILLI RESEMBLING THE DIPHTHERIA BACILLUS. 



The pseudo-diphtheria bacillus (bacillus of Hoffmann*) 

 Bacillus pseudo-diphthericus was first found by Lofflerf in 

 diphtheria pseudo-membranes and in the healthy mouth 

 and pharynx. It is also found upon the conjunctiva, 

 especially in xerosis conjunctive and corresponds to the 

 so-called Bacillus xerosis conjunctivas, described by Kutsch- 

 bert and NeisserJ as the cause of xerosis, but now recog- 

 nized as a constant inhabitant of the conjunctiva in health 



' 



> 



v $ -^ 



Fig. 145. Pseudo-diphtheria bacilli. 



and disease. By some authors this bacillus is thought to 

 cause chronic ulcerative keratitis and chalazion. The 

 pseudo-diphtheria bacillus is also found in the nose and 

 upon the skin, where it usually associates itself with Staphy- 

 lococcus aureus. It has been found in impetigo, acne, and 



*" Wiener klin. Woch.," 1888, No. 3. 

 f'Centralbl. f. Bakt. u. Parasitenk.," n, 105. 

 J" Deutsche med. Woch.," 1884, No. 24. 



