Table 3.

Rack 2 (1 cage per agent)

	Mouse PCR results on daya							Serology on day 84b		Prefilter test results on day
	0	7	14	21	28	84	0		7	14	21	28	56	84
MNV	0	0	1	1	1	0	3	-	-	-	-	-	-	-
MPV	1	1	1	1	1	1	3	-	-	-	-	-	+	-
MHV	0	1	1	1	1	0	3	-	+	+	+	+	+	-
Helicobacter spp.	1	1	1	1	1	1	not done	-	-	+	+	+	+	+
P. pneumotropica	1	1	1	1	1	1	not done	-	-	-	-	-	+	+
E. muris	1	1	1	1	1	1	not done	-	-	-	-	+	+	+
T. muris	1	0	0	1	1	1	not done	-	-	-	-	-	+	+
Pinworms	1	1	1	1	1	1	not done	-	+	+	+	+	+	+
Fur mites	1	1	1	1	1	1	not done	-	+	+	+	+	+	+

^aNumber of positive cages (1 tested per time point)

^bNumber of positive mice (3 tested)