TRYPANOSOMIASIS 397 



With parasites belonging to the flagellate family Trypanoso- 

 midac The term is analogous to Teniasis and Coccidiosis. 

 There are a number of different trypanosomiases now recog- 

 nized, being caused by different species ot Trypanosoma. 

 Among these the following may be mentioned : 



1 Surra A disease of equines, camels, elephants and 

 certain other animals in India, attributed to Trypanosoma 



Evansi. 



2 Nao-ana, nxgana or Tsetse Jh disease of Africa. Af- 

 fecting cattte, horses, mules, asses, antelopes, camels and 

 certain other animals. It is attributed to Trypanosoma Brueei. 



^ Dourine or maladie du eoU of Algiers, France and 

 Spain It attacks the horse and the ass in particular, but may 

 be transmitted to certain other animals. It is attributed to 

 Trypanosoma equiperdum. 



' 4 ,]/a/a',m«'.m. of South America. It affects horses 

 assesTcattle, hogs and certain other animals. It is attributed 

 to Trypanosoma equiniim. 



\ Rat trypanosomiash attributed to Trypanosoma Levels, 

 By some authors this parasite is alleged to be identical wUh 

 the horse surra orgauism, but it is quite certain that rats may 

 harbor a distinct species. Uut.l the results of further mvestr- 

 gatious are recorded it is deemed best to consider these as d,s- 

 finct infections. Musgrave and Clegg conclude that proof 

 sufficient to establish the individuality of the Trypanosoma 

 causing trypanosomiasis in domestic animals has not >-et been 

 advanced. These authors consider the trypanosonra found ,o 

 domesticated animals in the Philippine Islands as Tr. Ez-ans, 

 It is important to note the observation of Musgra^^ and 

 Cle.... that "in all the .forn.s of trypanosonuasis the mfectmn 

 see^s to involve particularly the genitalia, the ^^.n, and the 

 or<.ans of special sense. The skin sympton.s consist of rough- 

 eutn. of the hair, which also falls out in places ; a thickening 

 of the epidermis, often with exfoliation, and m some stages ot 

 the disease, various skin eruptions. There may be sun pie 

 erythema, and more rarely they may assume the severer forms. 



