Table 1. Diagnostic specificity in non-vaccinated, non-infected cows and vaccinated, non-infected cows.

Animals		No. of samples	Kits
			LPBE (%)	PrioCHECK (%)	NCPanaftosa (%)
Non-vaccinated, non-infected cows		203	99.5	99.0	100
Vaccinated, non-infected cows
	Cows administered vaccine once	116	NC a)	100	100
	Cows administered vaccine four times	28	NC	100	100
	Cows administered vaccine once in the field	40	NC	95.0	97.5
	Total	184	NC	98.9	99.5

a) Not calculated because the diagnostic specificity is a percentage of samples which are correctly confirmed as antibody-negative among samples which may not have antibodies induced by virus infection as well as antibodies induced by vaccination while the LPBE kit can detect antibodies induced by virus infection as well as antibodies induced by vaccination.