4)4 



REPORT ON DOURINE. 



TABLE VII concld. 



The differential diagnosis of Surra and Dourine in equines in 

 India concld. 



Symptoms. 



Surra. 



Donrine. 



Vulva and vagina 



Sexual excitement . 



Mortality (equines) . 



ABS . . . 



Boviut'B . 



Goats (plains) . 

 (hill) . 

 Dog (pariah) . 

 Cat 



Rabhit . 

 Rat (m. d.) 

 Mouse 

 Ox and camel . 



Vulva and vagina rarely 

 implicated. 



Marked (in both sexes) 

 Absolutely fatal in equines 



Fatal (disease more pro- 

 longed than in horses). 



Susceptible, rarely fatal, 

 blood capable of repro- 

 ducing disease for long 

 periods. 



Not fatal 



Majority succumb to in- 

 oculated disease. 



Fatal to spontaneous and 

 inoculated disease. 



Fatal to inoculated disease 



Fatal 



Fatal 



Fatal 



Are capable of carrying 

 the trypanosoina and 

 the developmental forms 

 of the protozoon in their 

 blood for long periods. 

 The blood of general 

 circulation in the former 

 animal has been found 

 infective to susceptible 

 animals for over a year, 

 while in the latter it has 

 been found infective after 

 three years' persistence of 

 the disease. 



Unilateral or bilateral 

 enlargement of vulva. 

 (Edema spreading to adja- 

 cent parts. Vagina in- 

 flamed may be pete- 

 chiated. 



Well marked symptom. 



70 per cent, of cases fatal 

 in Europe and North 

 Africa. Fatality less in 

 the East, especially 

 amongst country-breds. 



Susceptibility varies. With 

 or without symptoms, 

 rarely fatal. 



Appear to be insusceptible, 

 no reaction to inoculation 

 of infective blood. 



P 



Great majority insuscep- 

 tible. 

 Insusceptible (Blaise). 



More or less susceptible in 

 India.* 



Susceptible in miuor degree 

 (not fatal). 



Susceptible in minor degree 

 (not fatal). 



The blood of the affected 

 stallion may reproduce 

 the disease three years 

 after exhibition of the 

 primary symptoms and 

 the blood of a donkey has 

 been proved infective two 

 years after contracting 

 Dourine, 



