Table 1B. Number of marmosets found to be positive for pathogens during the screening process for the formation of the SPF colony, during the barrier maintenance screening, and from the conventional colony as comparison.

	Sex	Number	Giardia	Cryptosporidium	Clostridium perfringens
Initial Screen	Female	15	4	1	2
	Male	18	5	1	0
Barrier	Female	28	2	0	0
Maintenance	Male	19	2	0	0
Conventional	Female	16	5	0	1
Comparison	Male	12	2	0	4