Table 4.

Comparative ELISA results for primary challenge animals

	OD (±SD)
	IDEXX Herdchek BSE/Sc EIA		BioRad
	SRB-CCa	CCb	S&Gc	TeSeE
Ovine L-BSE primary challenge (all genotypes) (N = 17d)	2.61 (±0.024)	2.62 (±0.031)	2.68 (±0.057)	2.67 (±0.062)
Ovine C-BSE	2.636	2.668	2.631	2.661
Ovine scrapie	2.632	2.672	2.599	2.635
Ovine negative	0.022	0.026	0.029	0.036
Bovine L-BSE	2.630	2.668	0.063	2.617

^aSmall ruminant brain conjugate concentrate.

^bBovine brain conjugate concentrate.

^cSheep and goat.

^dClinical cases only. The pre-clinical VRQ/VRQ is not included.