TRACHOMA 



569 



acquired resistance to the virus to such a degree that the patient will 

 succumb to a latent infection. 



The dangers attending the treatment are slight; in a moderate 

 number of cases the sites of earlier injections may become inflamed 

 after the treatment has been continued for ten days or two weeks, 

 but this reaction is regarded as a modified Arthus phenomenon depend- 

 ing upon local sensitization. By far the most serious complication 



PASTEUR INSTITUTE IMMUNIZATION FOR RABIES. 

 (KRAUS AND LEVADITI.) 



Injections daily for two to three weeks. 



of the treatment is a paralysis which, in rare instances, appears during 

 the progress of the treatment, or shortly afterward. This usually 

 results fatally. The cause of this paralysis is not definitely known, 

 but it is assumed that it is a modified form of the disease. 



Trachoma. The etiology of trachoma contagious granular con- 

 junctivitis characterized by the formation of small granular elevations 

 of the eyelids that atrophy and lead to scar formation is not defi- 

 nitely settled. 



1 One centimeter of cord of the age indicated, ground in 5 c.c. of sterile salt solution, 

 and injected as per schedule. 



