CHOLERA, PLAGUE, TYPHOID FEVER 117 



Cacfiar Tea Estates. 



The work on these Estates was supervised by 

 Dr. Arthur Powell. Strong doses of vaccine II. 

 were used. The inoculations were made during 

 1895-96. Observations were continued till the end 

 of 1899. On these Estates, protected and non- 

 protected lived together, in huts belonging to the 

 Estates. The labourers were registered, and super- 

 vised daily : thus, all incidence of disease would be 

 known at once. 



Among 6,549 non-protected coolies, there were 

 198 cases, of whom 124 died. 



Among 5,778 protected coolies, there were 

 27 cases, of whom 14 died. 



These two instances may suffice. Other references 

 to the treatment, in Russia, Japan, Persia, Batavia, 

 and Manila, will be found in Haffkine's monograph. 

 In India though some very good results were 

 lately published the ravages of plague have 

 delayed cholera-work : and the question is not yet 

 decided, whether the use of a devitalised vaccine 

 can be trusted to give results equal to those obtained 

 with a live vaccine. 



