TABLE 2.

BHV1 antibody titers detected in serum by the standard VNT, the gE-blocking ELISA, and the gE ELISA in comparison to the titers in milk^a

Herd and cow no.	Titer
	VNT with serum	gE-blocking ELISA		gE ELISA
		Serum	Milk	Serum	Milk
Herd A
Cow 1	256	128	32	NDb	8
Cow 2	192	128	32	128	8
Herd B
Cow 1	2,048	256	32	≥256	8
Cow 2	256	128	16	128	2
Cow 3	512	64	8	128	4
Herd C
Cow 1	12	8	2	8	<1
Cow 2	96	64	16	128	2
Cow 3	64	16	8	16	<1
Herd D
Cow 1	128	64	8	128	<1
Cow 2	≥2,048	128	1	≥256	8
Geometric mean	269	69	9.8	87	4.9

^aSerum and milk from 10 animals were tested. 

^bND, not done (not enough serum).