66 DISEASES DUE TO PROTOZOA 



The ulcers are troublesome and unsightly rather than painful and 

 dangerous. 



TREATMENT. 



This is very unsatisfactory. 



Try nitrate of mercury ointment. 



Remove scabs by boric acid fomentations. 



Disinfect with mercurial solutions. 



Apply antiseptic ointments. 



All wounds should be disinfected at once with tincture of iodine. 



Guard against blood-sucking insects. 



Increased sanitation reduces the incidence considerably. 



Dogs and camels may be reservoirs of the disease. 



Tartar emetic should be tried intravenously and its ointment applied 

 to the ulcers. 



The Nile boil, Bucharest boil, Sec, have nothing to do with this 

 disease. They are pyogenic in origin. 



Differentiation between Kala-azar and Oriental Sore. 

 (After Balfour and Archibald.) 



For brevity K. A. will equal Kala-azar and O. S. Oriental Sore. 



Family distribution. 



K. A. An extraordinary tendency to attack a number of persons 

 in the same family or household, this family incidence 

 clearly pointing to house infection. 

 O. S. Rarely, if ever, more than one person attacked. 

 Age incidence. 



K. A. Children most commonly attacked. 

 O. S. Adults the rule. 

 Race incidence. 



K. A. Immigrants rarely attacked before eight years' residence 



in the East. The majority of patients seen are natives. 



O. S. Immigrants attacked within a few months to a year's 



residence in the East. The majority of joatients seen 



are natives. 



Seasonal incidence. 



K. A. No seasonal incidence known, though it is probable that 

 the majority of cases are infected in the cold season. 



O. S. Affection first appears usually from September to April, 

 and may last for sixteen months or more. 



