Table 7.

Clinical scores following BRSV challenge

BRSV	Clinical scores in control animals: days post BRSV challenge
Animal ID	0–>3	4		5		6		7		8		9		10–>14	Total clinical score
	0	ND	OD	ND	OD	ND	OD	ND	OD	ND	OD	ND	OD	0
641479		1	0	1	0	0	0	0	0	0	0	0	0		2
643771		0	0	2	0	2	0	0	0	0	0	0	0		4
643774		0	0	0	0	0	0	1	0	0	0	1	0		2
643778		0	0	1	0	1	0	0	0	1	0	0	0		3
643781		0	0	0	0	0	0	0	0	0	0	0	0		0
	Clinical scores in vaccinated MDA− animals: days post BRSV challenge
641480						0								0
643765						0								0
643766						0								0
643767						0								0
643768	1 (day 2, ND)*						0								1
	Clinical scores in vaccinated MDA+ animals: days post BRSV challenge
643769						0								0
643770						0								0
643772						0								0
643773						0								0
643780						0								0

*Clinical score 1: mild nasal discharge in one vaccinated MDA− calf (on day 2 post challenge).

BRSV, bovine respiratory syncytial virus; MDA, maternally derived antibodies; ND, nasal discharge; OD, ocular discharge.