TABLE 3.

Limits of detection of the enzyme immunoassays for Yersinia detection in EIA buffer or in artificially contaminated stool samples^a

Strain	Limit of detection (CFU/ml)
	EIA buffer (n = 3)		Stool samples (n = 3)
	28°C	37°C	28°C	37°C
Y. enterocolitica 2/O:9	3.4 × 103	4.9 × 103	3.4 × 104	1.3 × 104
Y. enterocolitica 4/O:3	7.8 × 104	1.4 × 105	5.2 × 104	7.5 × 104
Y. pseudotuberculosis I	2.0 × 105	1.2 × 103	5.4 × 106	2.6 × 105
Y. pseudotuberculosis III	1.9 × 104	1.1 × 104	4.7 × 104	3.3 × 104

^aYersinia enterobacteria were grown at 28°C and 37°C.