18, 4 Haughwout: Human Coccidiosis 471 
This would seem to me not to be particularly surprising, if we 
regard the invasion of Britain by the coccidia of man as having 
taken place under war conditions and during that period. The 
only way in which it seems to me possible to establish if condi- 
tions in Britain are favorable to the dissemination of coccidial 
infections in man would be to trace the cases among returned 
soldiers that have been observed and round up their contacts 
both before and after their infections were discovered. To 
be sure, this might be difficult. It would seem to me to be a 
highly desirable and rather interesting thing to do this at all 
points where Himeria and Isospora have been reported. 
The reports of Kofoid and his coworkers indicate strongly 
that coccidial infections have reached the United States from 
the eastern Mediterranean country, probably by way of France; 
and there is reason to believe that dissemination has taken 
place, as witness the four autochthonous infections reported 
by him. Of course, there remains the possibility that the infec- 
tion has been mildly endemic in the United States for a long 
time, and unless we can get detailed data regarding the ante- 
cedents of the four cases he reports in home-service troops, 
which would dispose of that idea, we must continue to carry 
it in mind. 
Kofoid’s findings were made in the course of the study of the 
stools of between 2,000 and 3,000 overseas and home-service 
troops at Debarkation Hospital No. 3, New York, in 1919. In 
his first paper(10) Kofoid states that the overseas troops had 
seen service in Flanders, Chateau Thierry, the Argonne, and 
Toal, while some of them had been in France but had never 
Seen service at the front. These troops served in 584 regiments 
and had been recruited from every state in the Union. Only a 
small proportion of them had served on the Mexican border. 
The home-service contingent was largely composed of cooks, 
bakers, and food handlers from the point of debarkation—prin- 
cipally from the medical department. The names of 27 per cent 
of these were suggestive of Russian, Polish, Italian, or Spanish 
nationality. Seven of them were negroes from Florida. In his 
first paper, Kofoid records the findings in his table, making no 
allusion to them in the text. He found and recorded, under the 
name Isospora, six infections in overseas troops and four in 
home-service troops. 
: In the second paper,(11) which apparently represents a con- 
tinuation of the previous work, and which is reported more fully 
in the transactions of the American Gastro-enterological Asso- 
