Table I.

Culture of Salmonella from pooled manure samples collected from pens housing pigs assigned to 1 of 3 treatments: S. Choleraesuis live oral vaccine, S. Typhimurium autogenous bacterin given intramuscularly, and non-vaccinated controls

	Number of positive samples/total (%)
Treatment group	Nursery 1	Nursery 2	Finisher	Total
S. Choleraesuis vaccine	Not sampled	14/75 (18.7)	30/156 (19.2)	44/231(19.0)
S. Typhimurium vaccine	4/20 (20.0)	8/78 (10.3)	19/156 (12.2)	31/254 (12.2)
Control	Not sampled	4/48 (8.3)	6/120 (5.0)	10/168 (5.9)
Total	4/20 (20.0)	26/201 (12.9)	55/432 (12.7)	85/653 (13.0)