18 



HUMAN INTESTINAL PROTOZOA IN THE NEAR EAST 



Cooks of Sidi Bishr camp, 279 men. 



Cooks of Mustapha Convalescent Depot, 119 men. 



Cooks of camps at Mazareta, Metras, Docks, Mex and Gabarri, 

 191 men. 



Royal Army Medical Corps staff of Orwa-el-Waska section, 

 19th General Hospital, 65 men. 



TABLE II. HEALTHY MEN EXAMINED IN ALEXANDRIA FOR CARRIERS OF E. his- 

 tolytica ARRANGED WITH REFERENCE TO PREVIOUS HISTORY OF DYSENTERY, 

 STATION AND SERVICE. 



P.D. = Previous dysentery. N.P.D. = No previous dysentery. 



In the above table (Table II) the E. histolytica findings alone 

 are set forth. The men in each group are divided into three classes 

 according as to whether they had served in Gallipoli and Egypt, 

 Salonica and Egypt, or in Egypt alone. The cases examined are 

 arranged in two columns representing a previous history of 

 dysentery or not. Each man was carefully questioned as to 

 whether he had had dysentery, and though it is impossible to verify 

 the men's statements or to draw a distinction between past bacillary 

 or amoebic infections, still it is possible to obtain some idea as to 

 the influence a previous dysentery has on the incidence of carriers 

 of E. histolytica. It will be seen, at any rate, that by far the 

 greater number of carriers gave no history of dysentery whatever. 

 Of the healthy men who had served in both Gallipoli and 

 Egypt there were examined 246 who gave a history of previous 



