Effects of Experimental Sarcocystis neurona-Induced Infection on Immunity in an Equine Model

Table 1

SnSAG1 serum and CSF titers for all horses, before and after experimental infection.

Horse	Infection status	Initial serum SnSAG1 titer	Initial CSF SnSAG1 titer	Postexperiment serum SnSAG1 titer	Postexperiment CSF SnSAG1 titer
1	Control	<2	<2	32	<1
2	Removed from study	<2	<2	16	1
3	S. neurona-infected	<2	<2	80	2
4	Control	<2	<2	<2	2
5	S. neurona-infected	<2	<2	32	2
6	S. neurona-infected	4	<2	32	<1
7	S. neurona-infected	<2	<2	80	1
8	Control	<2	<2	32	<1
9	S. neurona-infected	<2	<2	32	<1

Serum and CSF SnSAG-1 analysis was performed prior to and following the conclusion of the experiment (after Day 73). Infection status is marked as control or S. neurona-infected. Horse 2 received a dose of the parasite in error and was excluded from statistical analysis.