Aug. i, 1921 
Some Observations Regarding Eosinopliiles 
683 
At autopsy, October 18, 1918, there were found a moderate number 
of Gastrophilus spp. in the pylorus, 2 Ascares in the duodenum, 1 Strongy- 
lus and 10 Setaria in the abdominal cavity, and a very severe infestation 
of Strongylus and Cylicostomes in the cecum and colon. 
H.—Three-year-old gelding with Strongylosis. 
At autopsy, on October 24, 1918, there was found a moderate number 
of Gastrophilus spp. in the pylorus, one Strongylus and four Setaria in 
the abdominal cavity, and a very severe infestation of Strongylus and 
Cylicostomes in the cecum and colon. 
D.—Three-year-old gelding in very poor condition, which, as far as 
could be ascertained, was due to the Gastrophilus spp. 
At autopsy, there were found 1,030 Gastrophilus spp. in the pylorus, 
12 Strongylus in the cecum and colon, and 3 Setaria in the abdominal 
cavity. 
These cases are the ones that prompted this report. One of the main 
features of the positive diagnosis of internal parasitic diseases of man 
and the domestic animals apparently has been the presence of an 
eosinophilia. 
On this basis, there being an absence of an eosinophilia and the ani¬ 
mals having a high temperature, the cases were diagnosed as infectious 
equine anemia. The symptoms of the two diseases are very similar. 
Transmission experiments failed in a large number of cases, and, there¬ 
fore, infectious equine anemia can be positively excluded. In a few 
months all the animals died or were killed. Seven of the animals had 
very severe infestations of Strongylus and Cylicostomes; the eighth 
harbored an enormous number of Gastrophilus spp. 
At the time of the first examination the animals were not in bad 
physical condition. Some, in fact, were in good physical condition. 
Their resistance should have been good. From the facts presented by 
these cases it can be seen that other factors than the presence or absence 
of an eosinophilia are of great importance in the diagnosis of internal 
parasites of the horse. 
Tabus III .—Miscellaneous blood counts 
Tag 
No. 
Date. 
Hemo¬ 
globin. 
Erythrocytes. 
Leuco¬ 
cytes. 
Lym¬ 
pho¬ 
cytes. 
Poly- 
morpho- 
nu- 
clears. 
Mono¬ 
nu¬ 
clears. 
Eosino- 
philes. 
Mast 
cells. 
Tran- 
sition- 
als. 
'Feb. 2, 1919 
90 
7, 642, 000 
II, 420 
39- 2 
49. 2 
7 - 4 
4 2 
0. 0 
0 
Mar. S, 1919 
90 
7, 964, 000 
7 , 039 
34 - 2 
60. 2 
2. 4 
3 - 2 
O 
O 
12.. 
< Mar. 27, 1919 
90 
6, 836, 000 
7, 200 
32. 0 
60. O 
7 * 4 
.6 
0 
O 
Apr. 26, 1919 
IOO 
8, 076, 000 
9,389 
33 - 2 
58.6 
6. 0 
2. 2 
O 
O 
May 16, 1919 
60 
5, 864, 000 
7 , 349 
39 * 2 
55-6 
6. 4 
.8 
O 
O 
IO.. 
(Dec. 22, 1919 
85 
7, 962, 000 
5,369 
44. 0 
44. 4 
9. 0 
2. 4 
. 2 
O 
IJan. 3, 1919 
80 
6, 934, 000 
5,387 
10. 6 
82. 4 
6. 0 
1. 0 
O 
O 
Average. 
85. O 
7 } 32 S, 4 oo 
6, 693 
33- 2 
58.6 
6- 3 
2. 0 
. 02 
O 
