138 



TYPHOID FEVER 



also makes the following interesting statement. " I would remark 

 that there are a great many more cases of enteric fever amongst 

 the natives than is usually conceded — for instance out of ninety- 

 two cases of enteric fever collected by me in Poona during the 

 first ten months of 1908, no less than forty were genuine attacks 

 in natives, from whose blood in many instances I isolated pure 

 cultures of the Bacillus typhosus. Now when the habits of the 

 natives of India are considered the danger of these cases to the 

 general community cannot be over-estimated." 



cj E )rt 



cast 



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Chart 2, showing cases of enteric fever under treatment in Poona and Kirkee from 

 May 23rd to the end of October. Admissions are shown fortnightly by broken 

 line. Daily record of flies for the same time shown by thin line. Only nine 

 cases of enteric fever were under treatment for the first four and a half months of 

 the year, viz. Jan. ist to May 15th, 1908. 



Finally no better comment could be made on this paper than 

 that of Ainsworth himself: — " I readily admit that the observa- 

 tions recorded and the arguments advanced are open to the 

 objection that they afford but scanty data upon which to base 

 so important a conclusion that the house-fly is frequently the 

 intermediary and probably by far the most common intermediary, 

 in the propagation of that dele noire of Indian sanitarians, 

 enteric fever. Nevertheless, scanty though these data un- 

 doubtedly are, rough though the methods employed may be, 

 and brief the period over which the observations extend, there 

 is an isochronism shown in the appended charts between the 



