Table III.

Mean turbinate conchal score of the pigs after 4 weeks challenged with W/T bacterial lysate (group 1 and 3) and bacterial culture (group 2 and 4)

Group	Vaccine composition	Challenged with	Mean score of turbinate conchal atrophya
1	PBS	Lysate	2.5 ± 1.0*
2	PBS	Culture	1.56 ± 0.55**
3	#1 fragment	Lysate	1.0 ± 0.2
4	#1 fragment	Culture	0.23 ± 0.25
5	None	None	0 ± 0

^a The degrees of turbinate conchal atrophy ranged from 0 (normal) to 4 (complete atrophy).

^*P < 0.01,

^**P < 0.05.