Table 1.

Mean of concentration (m), index of dispersion (I₂) and reproducibility (T) values from the quality control of the target organisms.

Viala	Target organisms	Analysisb	Meanc	I2e	Tf
C1	C. coli	mCCDA, 37°C, 48 h	3.7 x 105	8.1	1.9
C2	S. Stockholm	BHI agar, 37°C, 24 h	4.1 x 104d	2.1	1.6
C2	Y. enterocolitica O:3/BT4	BHI agar, 37°C, 24 h	9.9 x 104d	0.8	1.3
C3	S. Enteritidis	BHI agar, 37°C, 24 h	6.0 x 104d	0.6	1.2
C3	C. jejuni	mCCDA, 37°C, 48 h	5.6 x 104	0.5	1.2
C5	Y. enterocolitica BT1A	BHI agar, 37°C, 24 h	1.2 x 105	-	-

^aFive vials of C1, C3 and C4 and ten vials of C2 and C5 were analyzed in duplicate.

^bmCCDA, Modified Charcoal Cephoperazone Deoxycholate Agar; d BHI, Brain Heart Infusion.

^cConcentration mean in cfu/mL.

^dFrom analysis of a parallel sample mixture.

^eIndex of dispersion.

^fTest of reproducibility.