Table 1.

Vaccine formulations for immunization of mice^a

Group	Antigen dose	FIA	No. of mice
1	10 μg	Yes	20
	25 μg		20
	50 μg		20
2	10 μg	No	20
	25 μg		20
	50 μg		20
3 (Pulmo-Guard PHM-1)	1/10 cattle dose	No	20
4 (Control)	0	Yes	30

^aVaccination was performed on days 0 and 14. Bleeding was performed on days 14 and 28 (10 mice).