758 
Bulletin de la Société de Pathologie exotique 
number (about 5) of brownish fluid motions every day but these 
motions were not associated with any tenesmus. 
His abdomen was tender in many places but not markedly 
along the large bowel. 
His urine was normal but it showed signs of considérable 
intestinal absorption. His lieart and lungs were also normal. 
The microscopical examination of the fluid portion of his 
brown faeces showed a fair number of specimens of Entero- 
monas hominis but no amoebae or other parasites, except bacilli 
and Blastoeystis hominis, but lie looked so like a case of Typhoid 
Fever that the faeces were plated ont on several occasions, the 
urine was examined bacteriologically, and agglutination tests 
with blood sérum were performed against B. typhosus and 
B. paratyphosùs A et B. There was a partial agglutination with 
B. typhosus i in 3o but not in higher dilutions and this is to be 
explained by his double vaccination against this organism 
while ail other bacteriological tests were négative. 
He was sent to bed and placed upon a fluid dietary consisting 
largely of milk and in a couple of days his température fell to 
normal : and meanwhile arrangements were made for his enlry 
into the Military Hospital for the more draslic treatment to be 
mentioned below and which was administered as soon as it 
was quile cerlain that no other infection of a bacillary nature 
was présent. 
Under this treatment the flagellâtes rapidly disappeared, his 
tongue cleaned, his pains vanished and he felt quite well and 
was sent on sick leave to Egypt to regain his strength. 
Etiology. — In this case it appenrs as though every other 
cause of the diarrhoea was excluded except the Enteromonas 
hominis and his improvement when this parasite disappeared 
notwithstanding severc purgation by drugs appears to confîrm 
this aeliology. 
Judging by his history we imagine that he became infected 
in Omdurman probably in January or February 1917 but that 
the disease only assumed the nature of an illness early in July 
of the saine year. 
As to how the flagellate exists outside the human body we 
bave no knowledge and we therefore do not know how man 
becomes infected. 
