TABLE 3.

Sources of E. coli reference collection strains^a

Host	Strains having indicated virulence-associated region
	hlyII	kps	pap	sfa
Human	24, 43, 48, 51, 54, 56, 60, 63	8, 11, 14, 24, 35, 36, 38, 39, 40, 41, 47, 48, 49, 50, 51, 53, 55, 56, 61, 62, 63, 64	2, 11, 24, 35, 36, 38, 39, 40, 41, 48, 49, 50, 51, 53, 54, 55, 56, 59, 60, 62, 63, 64	51, 53, 54, 60, 63, 64
Other primates	52, 57	46, 52, 57, 66	37, 46, 52, 57	52, 57, 65, 66
Nonprimate		44, 47	31, 44	58

^aNumbers are ECOR strain numbers (25).